"Perry the Platypus, don't take one more step or I will drop your friends into the lava!" the Doof said, in a threatening manner unlike himself. "One more step and you could say bye bye to your friends."
Perry notices a screw lying loose on the ground. He slowly inches his tail towards it, making sure Doofenshmirtz does not see him. He quickly pops it up into the air and slaps it with his tail. The screw sails towards Doofenshmirtz at an alarming rate. Doofenshmirtz quickly ducks and the screw hits a button on the wall behind him.
"Perry the Platypus," the Doof says in a startled voice. "Do you know what you've just done?"
Perry looks over to the kids in a panic.
Doofenshmirtz then says, "Well I don't either. But I do know what this one does!" He pulls a remote from out of his pocket and holds it towards the kids. He pushes the button and the top of the pool of lava opens up revealing fifty gallons of hot magma.
Perry, not knowing what to do next, freezes. Doofenshmirtz presses another button and the kids start to fall to the lava.
They all yell out, "Perry, HELP!" Perry still frozen does nothing, for there is nothing that he can do. The kids continued to fall until…
"BEEP! BEEP! BEEP!"
Perry suddenly finds himself lying safe on Phineas' bed. He is sweating and breathing heavily, as if his dream had really just happened. But that's how we all feel.
Perry readjusts himself as Phineas hops out of bed and walks out of the room alongside Ferb.
Perry soon falls asleep again. This time, he is all alone. Everywhere he goes he sees nothing. All of a sudden, he is woken by something.
He is sweating more than before now. Perry finds himself having these recurring dreams every night. He doesn't know what they mean, but they have to mean something.
A cold breeze from the slightly ajar window rushes in. Perry hears the leaves rustling outside and the wind whistling. The birds are singing a peaceful song and the squirrels are gathering their food for the winter.
Perry sits there wondering what it would be like to live in the wild. Just for one day, he wishes he could see how it feels to be free. What if he never was an animal? What if he was human, just like Phineas, or Ferb, or even Isabella? What if he was never wanted by the Flynn-Fletchers? What would his family be like? What would his life be like?
All these thoughts ran through Perry's head as he tried to forget about his dreams.
Perry peeked through the open window and saw three birds sitting in their nest with their mom. The mother bird sneaked a quick glance at Perry at returned to its babies.
Perry wondered what it would be like if he was still with his family. He wondered why he wasn't with them right now and what they would be like.
Perry, trying to escape these thoughts, jumped off of the bed and walked to the door. Before leaving, he stopped and turned around. He saw the mother bird leaving the nest to find food for the babies.
Perry thought to himself that maybe, just maybe, that's what happened. Maybe his parents went off to find food but never returned. As Perry walked out the door, he thought of what might happen to the baby birds if their mother never returned.
Perry walked down the steps to the first floor. There, he saw Linda as she was leaving for the grocery store. He saw her hug Phineas and Ferb as she left.
Deep down inside, Perry wishes for his parents to return so they could be happy again. Perry thought that maybe if the Flynn-Fletchers knew what he did every day, that if he wasn't a secret agent, Doofenshmirtz may have taken over the tri-state area. He thinks that maybe, he should show them. Show them his lair, his gadgets, and even where he disappears to everyday.
Just then, Perry's communicator starts vibrating. He takes it out and looks down at the screen. On the screen, written in flashing red letters are the words, 'Report For Your Next Mission!'
Perry sighs a faint sigh as he returns the device to where he got it. Perry walks up to a photo hanging on the wall. He looks up at it then down at his feet. Perry sighs once more. He starts swinging his arms around and all of a sudden, he is sucked into the picture.
Perry appears in his chair in the lair as the computer screen starts up. A man by the name of Martin Vince appears on the screen.
"Hello, Agent, uh…" he runs his finger down a paper on a clipboard. "Ah hah. Agent, P, is it?" the man says, unsure if he chose the correct name.
Perry nods his head as the man continues. "Yes, yes. I thought so. Major Monogram has told me quite a few things about you. But don't worry, nothing bad. Nothing bad at all."
The man introduces himself and tells Perry that Major Monogram and Carl have disappeared. "We have also discovered that along with your two friends, the evil Dr. Doofenshmirtz has disappeared as well."
The man continues to ramble on about what he thinks of the predicament as Perry poses a confused expression.
"Now, you may be wondering why we've called you here. Well, the thing is, you are the best agent the agency has ever had. And, well, you're the only one left. All the other agents refused to help us. They said that they didn't want to get themselves in danger. They said they don't even know what's going on. I'm sorry, I'm rambling again, aren't I? Well, anyway, we need you to go look for clues anywhere you can that could help us find out what has happened to these people. We suggest that you first look at the Dr.'s building. There's bound to be something of interest there."
Perry nods his head and salutes Martin. He walks over to the elevator and steps inside. The doors close and he slowly rises up. Perry watches Martin as he ascends. He wonders what will happen to him, not knowing of what may be in store. As the elevator reaches the top, a platypus sized hole in the outside wall of the house opens up.
Out steps a platypus, worried and sad. He looks back up at the tree he saw before and notices the bird nest. The mother bird is sitting there alone, the babies gone. Perry looks ahead and pulls his fedora over his eyes. He thinks about what had happened to those baby birds as he walks off into the distance.