After the Atmos tried to kill everyone in the car and the Doctor is thinking how to deal with the fret of the Sontarans to the planet. One thing that he is thinking on that he needs to look at a car to know what he is dealing with. If he could find a way stop the plan that the Sontarans have for the planet and to see why the Atmos is in every in the UK.
"Hay Martha, are you thinking on what I am thinking at the moment?" the Doctor ask his wife to see what she thinks on the topic in hand.
"I do think that we need to have a look at a car," Martha answer her husband and she knows he is thinking the same as her on the problem in hand.
"Where are we going to get a car from?" The Doctor is trying to think of an answer to his question in his mind.
"We could ask Donna to see if she will let us to have good look Atmos. To see if something is out of the ordinary if it will help you dad," Jenny explains her idea to both of her parents.
Both the Doctor and Martha look at their daughter to that she is a smart little girl. One thing that the group need to do to get a new car without to get back to Unit to tell the colonel about the Sontaran and that they are a danger to the planet.
When the Doctor and his family got to home of Donna to ask her to use her so that they can look at the device inside the can. On their faces as Donna open the door to see what is wrong with the family and see what she do help the family.
"Your not going to believe the day that we are having at the moment," the Doctor told Donna what happen with the car that they were in.
"And we would like to have a look your car if that okay with you?" Martha ask Donna and she nods her head to say yes to the question.
When Donna and the Doctor get to the car that Donna's family own and the colour of it a light blue. Donna gets out the keys for the car for the Doctor to open bonnet to look at the Atmos device to look what is inside it.
As the Doctor start to look into the car and he the device and that when he and his hear an old man coming toward them. The old man is Donna's granddad and his name is Wilf and he did meet the two before Donna's first adventure.
"Did you find them?" Wilf ask as comes to his granddaughter. As he slowly turns his head to find the Doctor and Martha, "it's you two."
"OO it you," the Doctor replied to the old man.
"Have you three met before the day?" Donna ask her granddad.
"Yes, but these two disappear right in front of me on Christmas eve," he answer Donna, "but I don't kwon the little girl that is with them at the moment."
"This our daughter name Jenny," Martha told Wilf and he shot at the news.
As soon as the Doctor start to mess with the car and then it makes a bang with some sparks coming out of it. Then white smoke comes out of the car and it is poison to everyone on the planet.
"Martha, could you call Tish for me to tell her the Sontarans," the Doctor ask his wife, "also give her message to not have Unit or they will kill by them."
Martha gets out her phone to call her human-self sister to tell the news that her husband.
"Hi Tish, I need you to give out a message to the colonel," Martha start explain what the Doctor want her to say.
"What do you want me to say to the colonel?" Tish said in a harsh tone in her voice and from that Martha know that Tish not herself.
"Tell the colonel this, code red Sontaran and don't let Unit go in there because they will get killed by them," Martha said to Tish and then put the phone.
After the phone call Martha is thinking how Tish spoke to in a way that she never hears from anyone before that she knows in her life. One thing that it is not Tish. Deep in her mind thinking on should she tell her husband on this matter at hand and how would he deal with it if it was him in the same place as her.
"What the matter with you?" the Doctor asks his wife to see if she okay.
"It just Tish is not feeling herself," Martha explains to her husband what on her mind.
"I think that it is of this problem and we need to try and take it one step at this moment,"
On the where the Sontaran thinks that they have killed the Doctor and his family and that he can't get in the way of them. Then an alert went off in the ship to tell them that a car has actually and that could only mean the Doctor is alive all. Then an alarm went off to say that one of the cars with Atmos went off and for the Doctor and his family not in a good spot with the Sontarans as hole.
"This good for us," Staal said to Luke.
"Why is good for you and that he is our enemy?" Luke asks the leader to see what he is thinking on the matter in hand with the Doctor.
"Because the last of the Time Lord will watch the Earth as it dies right in front of them," Staal explains his plan to the boy.
"So are going to war then I am in it all the way," Luke wants in on the battle for what he thinks that is right on his side.
Back on Earth where both the Doctor and Martha is trying to stop the plan that the Sontarans has for the planet as a hole. The two knows that their daughter can help with the two on matter in hand. One thing that the Time Lords are thinking that the gas must be for something that enemy needs from the planet but at the moment they have to take do this because it is not normal behaviour of the Sontarans and the Doctor knows that it is not right as a hole.
"Doctor what is this gas and why can't I breathe right at the moment?" Donna asks the Doctor to see if he has an answer on this problem.
"I think that it might be something that human can't breathe this substance in at all," Jenny said to Donna who is shots to hear the young girl to say all of that in the way that she did.
The Doctor looks at his daughter to say that he is happy that she knows all about humans in a hole and Martha must been getting jenny to read some of her old book in the Tardis. He wants to teach his daughter on how to fly the Tardis soon but not just yet in his mind.
"They must be using this gas for something and what could it be? The Doctor is thinking to himself to find the answer.
As the man is thinking on the matter at hand a black tax comes to pick up the Doctor to take him back to the Atmos factory to Unit. The person that is driving it is Ross and it is the only thing that he can get without the killer device to try to kill him and his family as a hole.
Back at the factory Tish decide to tell the message to the colonel to get him to fight the Sontarans. She doing something bad to the world and Unit don't know what it is or how to stop it in the first place. Two people that she needs to look is the Doctor and his wife to stop the plan that is in motion for the Sontarans.
When the Doctor got to the factory to tell Unit not to get into a fight that can't win. As he slowly turns his head to see daughter being quite at the moment and he wants to know that is for her.
"What the matter with you today?" the Doctor ask his daughter to see what is going on with her.
"It just that I can hear a voice in head or something like that I think," Jenny explains to her dad who is trying to think on what it is and how can he help her to start with.
"What is it staying to you?" the Doctor ask his daughter to find out more information from her.
"It is staying don't trust Tish," Jenny told her dad, "because the Tish is a clone in Unit. The fake one is working for the Sontarans and the real one is in a lab in the factory."
"I think that we are going to have to keep an eye on Tish then," he told his daughter his idea on the matter in hand just in case.
"I am guessing that you want to keep an eye on all times," Jenny knows what her dad wants her to do and he nods his head to say yes to her.
All that the Doctor is thinking at the moment is to try to take it one step at a time to deal with the Sontarans. He knows that Tish is not real and working with the Sontarans and the real Tish is inside the factory. He also knows that he needs to tell his wife on the matter before she kills for not telling her.
"Okay just take it one step at a time at the moment," he said to himself before he can find Martha.
As the Doctor decides to give the Tardis key Donna to keep her safe from gas that is around the two. He does have a plan that is coming together slowly as he wants to pull it off. He knows that the means a lot to him and how to treat it as it might work out in the end of this as a hole. All he can think of is how to save the world without a war on his hands just like the time war.
When the Doctor goes inside the base of Unit to see his wife and tell her the news that Tish might be an imposter. He knows that Martha would try to kill the fake Tish without knowing that she not the real one.
When he finds his wife to tell her news about Tish not being real at the moment of time. He knows that it going to be hard on because of his wife and how she knows that her feelings will be affect at this moment.
"Martha, I have somethings to you and before you hear it you need to calm as much as possible," the Doctor said to wife.
"What are they and it must important information about hole problems in hand?" Martha asks her husband on what he has to say to her.
"We might have a big problem that at moment that is connected with the Sontarans. It is that Tish had been cloned by them and that could explain why she say in cold way. How I find out on this information is by our daughter," he explains to his wife.
"How do you know this information and why don't I know of this sooner?" she asks.
"To be honest with you that I just found out about our daughter from her just now," the Doctor explains to wife on what he found out about his daughter, "she said that she wants to keep an eye on Tish for us for now."
Both Martha and the Doctor need to make sure that Unit don't start a war with the Sontarans because they will kill. They are trying to find a way to stop the plan from the Sontarans and maybe use Tish as well.
The Doctor and his family go into the base of Unit to try to stop them going into war with the Sontarans. He is thinking it is going to be hard on him and he knows that his wife will help in any way that she can with him in this matter in hand. He is hoping that the clone of Tish could help them in this matter in hand because she working for the Sontarans but Until doesn't know that she is fake.
"Are you thinking on what I am at the moment?" Martha asks the Doctor to see if he has a plan to deal with the Sontarans.
"Yes, I have a plan," the Doctor answers, "it's to talk to them. They also have the Tardis and we know who is inside."
"I do think that that your plan is a good one," Martha told the Doctor to make him with plan as a hole.
When the Doctor and his family walks into the base to make sure they didn't do something bad to the planet. All that the Doctor need to do is talk to Staal to get him to stop with his plan to damage a beautiful planet and why are the Sontarans need the Earth in first place.
"DO NOT START A WAR WITH THE SONTARANS BECAUSE UNIT WILL GET KILLED IF YOU DO," the Doctor to the colonel to make sure that he didn't do something bad that the Time Lord has to fix at the end of the day.
"Are you going to call them to stop what they doing to the earth," Martha knows the plan that then Doctor is about to do to try to save the planet.
The Doctor is about to sit down on as he slowly got into his chair to get ready to talk to Staal to see the Sontarans needs the planet for. He puts his hand into one of his pockets in his suit to get his sonic screwdriver to him to get in contact with the Sontarans. He knows that it will hard to get talking about the plan for earth. The planet means a lot to time lord because it is a second home to him and his family after the Tardis.
As the Doctor is about to sit down in a chair to get septal before he to talk to the Sontarans to try for them to stop their plan to take the planet by force. He knows that his wife may want to help him in this plan of his to save the Earth from one of his enamels. The one thing that they need to do is to keep Jenny out of trouble at the same time.
The Doctor put his hand in one of his pockets to get his sonicscrewdiver to turn on the TV in the base to speak to the Sontarans. The colonel is not happy with the time lord idea because it could start a war in the press and thinks someone could do it better than the Doctor.
"This is the Doctor speaking to the Sontarans," the Doctor said to the TV to see if the Sontarans respond to him.
"You survive the attempt on your life and this is good because you can see this planet die right in front of you," Staal answer the time lord.
"Using gas is not normal behaver of the Sontarans is it now," Martha said to the leader of the Sontarans.
"In less, that the war is not going to well for you guys at the moment then," the Doctor explains to everyone in the room.
"What war?" the colonel asks both the doctor and Martha to see if they know on what is going on at the moment.
"The war between the Sontarans and the Rutans. The war started 1000 years and nobody knows for sure on how it's started in the first. In that time a lot of blood on the battle failed and what is the point is that?" the Doctor explains to everyone in Unit.
"For victor," Staal said to the Doctor, "Sonta HA."
The Doctor is not happy to hear all of the Sontarans decide to turn channel on the TV to stop hearing of battle cry. After it is finish, he put Staal back on the screen and all of stand still.
"We are the history of the Sonta have got your Tardis," Staal points at a blue box.
"You shouldn't have showed me or my wife the Tardis now because we have only control of that ship," as the Doctor and Martha put out their sonic devices from their pocket to show the Sontarans.
Ater that the Sontarans has ends the call because the Doctor is about to do something bad to them.
"Dad, what do we do now?" Jenny asks her dad to see what can he do to get the Tardis from the Sontarans.
"Jenny, I don't know what to do at the moment in time," the Doctor said to his daughter.
"You will think of something," she replied to her dad witch put a smile on her dad with her.
"First we need get rid of this gas," he said to his daughter.
The Doctor slowly turns his head to see the colonel to see if his idea is good to use as a hold. He is holding three gas marks for the Doctor and his family so that they can go outside in the air. Jenny is wounding what is going on with all of the Unit as a hole and to see if she can with what is going on.
As everyone went out of the base to see what going on and the Doctor and Martha see something in the sky. The two are thinking that the ship in the sky is what the Master made to be a trap for the Doctor when Martha was a human. Unit is using the ship to clean up the air around the place from the gas.
Martha is thinking how are they going into the building when there Sontarans in. At the same time the colonel has something that can kill a Sontarans and she knows that they way to Tish as soon as possible.
"I think that we need to in Atmos," Martha said to her husband who agree with her on the matter.
The Doctor had to make a call to Donna because she is in the Tardis. As he is on the phone to his Donna to tell her what to do to get back to Earth.
When the Doctor and his family got to room where Tish being hole and they turns their heads to look at the flack Tish with a gun.
"You wish that she has a gun on her now," the clone said to everyone in the room.
"We all knows that you are a clone of Tish," Jenny told the clone.
"How long did you know?" Tish asks the young girl as the gun went flying out of her hand.
Martha goes to Tish to stop the clone to from killing her at moment and to get Donna and the Tardis back to Earth. The Doctor knows that the Sontarans need to be Stop but the boy called Luke got himself kills to save the time lord's life so that he can be with his daughter and his wife.