"There! There they are!" The security guards shout as the group finds the others being held over a hole in a net by a crane by some scientists.
"Yeah I see. You two have been breathing the fumes from the equipment too long!" A woman says.
"Go get them!" A brown haired man says as the security guards begin to come toward the group.
"Stand aside ladies. This is man's work." Shaggy says.
"Yeah. Man's work." Scooby-Doo says as he smiles.
"But Shaggy..." Crystal says as Shaggy and Scooby-Doo go toward the security guards.
"I gotta help them." Alexis says as she shifts to wolf form and begins to go toward Shaggy and Scooby-Doo as they get picked up by then men.
"Jinkies!" Velma shouts as everyone soon sees two real aliens appear as they screech scaring the security guards off as Scooby-Doo and Shaggy then run off.
"That is so definitely not fake." Alexis says in alarm as she watches the two aliens attacking the bad guys.
"Attagirl!" The blue humanoid alien shouts as the other alien captures three of the bad guys before Alexis looks at her.
"What? It's not possible." Alexis says as she looks at the aliens and sees their necklaces realizing it is Crystal and Amber before running over and jumping in front of Crystal as she falls due to a piece of equipment as some bad guys go toward her in a piece of machinery.
"Alexis!" Crystal shouts as Alexis looks at her.
"Crystal are you okay?" Alexis asks as she begins to help Crystal to her feet with her head.
"Watch out!" Crystal shouts as she grabs Alexis and tries to shield her before Amber jumps in front of them and keeps the machinery at bay.
"She won't be able to hold that for long." Alexis says in alarm seeing Amber beginning to struggle.
"Shaggy, Scooby help!" Crystal shouts as she and alexis look over at Scooby-Doo and Shaggy as they're hiding.
"Those two clowns can't help you." The man driving the equipment says before Scooby-Doo comes running over with a pole and knocks him away from it protecting Alexis, Crystal and Amber.
"Nice timing." Alexis says as she sighs a breath of relief.
"Are you okay?" Crystal asks as Alexis nods and helps her and Amber up before the three see the bad guys are captured.
*Timeskip*
"Are you all right?" Shaggy asks as he and Scooby-Doo come over as Crystal and Amber transform back.
"Yeah. Thanks." Crystal says.
"I don't get it? You're aliens?" Shaggy asks sadly.
"I have another confession." Crystal says ashamedly.
"I know. You're not a government agent." Shaggy says.
"Actually we are but not from Earth. We were sent by our world to investigate signals from your planet." Crystal says.
"Transmitted from the SALF Station." Amber says as everyone gives a surprised look.
"You can talk?" Shaggy asks.
"Yes. Quite well." Amber says as she smiles.
"Dig that Scoob! A talking dog!" Shaggy says as he looks at Scooby-Doo.
"Yeah!" Scooby-Doo says.
"We first homed in on your television signals sent years ago." Crystal says.
"Sure. That's why you're disguised the way you are. The television broadcasts you picked up were sent back in the '60s!" Velma says.
"We thought all earthlings dressed this way." Crystal says as she chuckles.
"Why mess with a classic look?" Shaggy asks before the group hears something and sees a spaceship over a hole in the ceiling projecting a light into the cave.
"Here's our ride. I hope you can forgive us for deceiving you." Crystal says as Alexis nods.
"It's okay." Alexis says as she smiles at Crystal earning a smile back from her.
"Yeah. Like we understand." Shaggy says.
"You really are a groovy guy Shaggy. You too Alexis. Shaggy I hope you will always think of me as... a friend." Crystal says as she smiles.
"Of course Crystal. I just wished that... Well you know. But I know you like Alexis and not me." Shaggy says as he pulls Alexis over by her hand.
"I'm looking for someone and I do like Alexis but they say long-distance relationships... never work out." Shaggy says.
"It's okay. I know." Alexis says as she smiles softly at Crystal earning her a kiss on her cheek.
"Goodbye Scooby. I'll never forget you." Amber says as she kisses Scooby-Doo.
"Me too Amber." Scooby-Doo says as he smiles.
"Thanks everyone. We had a great adventure... and made new friends." Crystal says as the group watches her and Amber go into the light and transform back into their real forms as they are then beamed up into the spaceship.
"Come on guys. We got a mystery to wrap up." Fred says as the group begins to leave the mines to contact authorities.
*3 Weeks Later At Night*
"Alexis I'm going to bed. Is there anything you need?" Daphne asks as everyone is back home in Coolsville.
"I'm good Daph. Just happy for us all to be back home for a while." Alexis says as she smiles.
"Yeah. It'll be nice to have a break for two weeks. Night Alexis." Daphne says as she leaves the room.
"Night Daphne." Alexis says before she hears her phone buzz an hour later and sees someone has texted her to come outside before she cautiously goes outside into her backyard and sees Crystal and Amber standing near a tree smiling.
"Crystal! Amber!" Alexis says happily as she goes over to Crystal and Amber.
"Hello Alexis." Amber says.
"It's good to see you again. I missed you." Crystal says as she hugs Alexis.
"I missed you too. But wait. Why are you here? Is something wrong? I'm happy you're here but still." Alexis says as she looks at Crystal.
"No, no. Nothing's wrong. Anyway do you like my new disguise? I had the scientists back on my planet up our looks a little to match the current time so people wouldn't raise suspicion." Crystal says as she is wearing a pair of light blue jeans with a pink tank top and white cardigan while Amber is wearing a pink dog collar.
"You look lovely. Beautiful actually." Alexis says as she smiles causing Crystal to blush.
"Thanks. You look nice too Alexis." Crystal says as Alexis blushes.
"Thank you. But seriously how come you're here? Also how did you manage to get my number?" Alexis asks curiously.
"Our technology allows us to hack your technology given we've been in contact recently. So I was able to find where you were and talk to you." Crystal says.
"Okay that's pretty cool. Slightly creepy but cool." Alexis says as Crystal chuckles.
"Yeah. Anyway I'm here because I came to stay. So did Amber." Crystal says.
"What?" Alexis asks in surprise.
"We realized we missed all of you and wanted to stay here." Amber says as she smiles.
"On Earth with all of you. We thought we could be agents for our home but make a life for ourselves here. If you and your friends are okay with it we'd like to join your group." Crystal says.
"I know they won't have any reason to argue. It's perfectly fine." Alexis says happily.
"Good. Amber could you possibly let us talk for a few minutes." Crystal says as she looks at Amber.
"Of course." Amber says as she walks off.
"There's actually another reason why I came back. I also came back because I wanted to be with you Alexis. I really like you. I was hoping we could maybe work something out together." Crystal says.
"That sounds amazing Crystal. I'd love that." Alexis says as she smiles.
"Groovy because I was hoping you'd say yes." Crystal says before she kisses Alexis.