Ferb was sitting in his Biology class with Baljeet when suddenly his watch began to flash rapidly. He knew what that meant, so after wordlessly gathering up his belongings and a wave to both Baljeet and their professor, Jake, he darted from the room. As soon as he found a secluded area, which was tough on a college campus, he replied to the signal.
"Agent H! Glad we caught you. We need you to come to the base for your first mission!" Major Monogram announced. After being told where the nearest portal was, he made his way through the chutes and landed in the familiar platypus themed base. He took his place in his chair right beside Agent P, and the large mustached man began his address.
"Good afternoon, Agents. For your first team mission, we need you to put a stop to Doofenshmirtz's latest contraption, a-"
"Pardon me, for just a second," Ferb interrupted. "Doofenshmirtz? As in the mayor?"
"No, Heinz Doofenshirtz, his brother."
"Brother? Does he have a daughter named Vanessa?"
"Yes, you know him?"
"No, sir. I know her."
"Ah, yes. Vanessa. Smart girl. Good head on her shoulders."
"You know her?" Ferb asked.
"Yes, she's dating my son, Monty."
"Your son?! I know him, as well! She...doesn't have anything to do with this does she?"
"Oh no, Vanessa isn't that kind of girl. But, since you have such close ties with the 'enemy', this costume we have for you will come in handy."
Suddenly a compartment opened and a set of clothes in a display case rose from the floor. It looked like his secret agent costume from Halloween. Once he got changed, he realized the difference.
"I feel wires..." he said moving about in his new outfit.
"Those wires are important. They've synced up to the watch we've given you. That suit has the capabilities of changing depending on the situation and it changes your hair and eye color, as well. Being our first human operative we needed to take measures to mask your identity that we wouldn't normally have to take."
Ferb fiddled with the controls and suddenly his hair was flame red, then cobalt blue, then jet black.
"Intriguing," he gasped, before adjusting his fingerless gloves and returning to the screen. "What do you think 'Agent P'?" he asked activating the translator.
"Looking good." Perry pointed. "Are you ready? The danger is minimal, but first day jitters are a thing so..."
"Not to worry. I'm normally great in new situations."
"Then let's head out!"
They each strapped on a jetpack and blasted off into downtown Danville.