As summer reaches its end, a teenaged Phineas is contemplating to Ferb which college or university he should go to, being the only one in their friend group who hasn't decided where he's going yet.Ferb suggests that Phineas get in the randomizer booth they'd installed in their room and let fate decide.Buford suggests to Phineas that maybe he would be happy going to the same school as Ferb will be attending in Britain, while Baljeet suggests him to going to law school like Candace, but Phineas turns these suggestions down. Carl is surprised by this, since Doofenshmirtz had given up evil years ago, ever since he started teaching high school science.
Isabella, who is working as a waitress there for her mom, brings the girls their order. He said you had a crush on me back in grade school. " | "Out to Launch" | "Phineas and Ferb Get Busted!Baljeet comes into the room and mentions that he had just been telling Buford about what life is like in college.He tells them that he has already graduated and is now a professor, and is hoping for Buford to attend his classes; though Buford is leaning towards attending film school instead. A., Irving, now working as an intern, notices Doofenshmirtz’s inator alert going off and informs his superior, Commander Carl.Nana tells him she is actually leaving today as soon as her waitress shift ends at the Café. " | "Road to Danville" "This Is Your Backstory" | "Blackout! " | "Fly On the Wall" | "Bully Bust" | "My Sweet Ride" "Der Kinderlumper" | "Sidetracked" | "Primal Perry" | "Mind Share" | "Backyard Hodge Podge" "Bee Day" | "Bee Story" | "Great Balls Of Water" | "Where's Pinky?Nana Shapiro suggests he go to the restaurant if he has anything to say to her. Gretchen asks where Baljeet is, and Ginger replies he is at Phineas' house. (The garbage disposal from earlier suddenly goes through the gate and takes all the romantic dinner stuff with it.) Baljeet: My phone's out in the car. Y-Y'know, one of the best things about being a successful scientist is that I get to meet lots of attractive women, such as yourself. " "Unfair Science Fair" | "Unfair Science Fair Redux (Another Story)" "The Lake Nose Monster" | "Interview With a Platypus" | "Tip of the Day" "Attack of the 50 Foot Sister" | "Backyard Aquarium" | "Day of the Living Gelatin" "Elementary My Dear Stacy" | "Don't Even Blink" | "Chez Platypus" | "Perry Lays an Egg" "Gaming the System" | "The Chronicles of Meap" | "Thaddeus and Thor" | "De Plane! " "Let's Take a Quiz" | "At the Car Wash" | "Oh, There You Are, Perry" | "Swiss Family Phineas" "Hide and Seek" | "That Sinking Feeling" | "The Baljeatles" | "Vanessassary Roughness" "No More Bunny Business" | "Spa Day" | "Phineas and Ferb's Quantum Boogaloo" "Phineas and Ferb Musical Cliptastic Countdown" | "Bubble Boys" | "Isabella and the Temple of Sap" "Cheer Up Candace" | "Fireside Girl Jamboree" |"The Bully Code" | "Finding Mary Mc Guffin" | "Picture This" "Nerdy Dancin'" | "What Do It Do?The girls also contemplate how Phineas and Isabella are not a couple. (takes out her cell phone) Oh, wait, I don't have any charge. Buford: I just got the 21G and the software won't be ready for two months. (All the girls look at the empty backyard.) Katie: Wow! Jump Instructor: You want to know the best part about being a jump instructor? (The jump instructor pushes him off the plane)Lawrence: Linda! " | "Atlantis" | "Phineas and Ferb Christmas Vacation!Monogram, who has since retired to Bora Bora, reminisces upon hearing that Doofenshmirtz may have returned to evil, and tells his former intern to say hi to Doofenshmirtz for him.Carl then calls Perry, who is also enjoying his own retirement. (He gets up out his chair and leaves Swampy alone.) Jeff "Swampy" Marsh: They're growing up!Meanwhile, Doof wants a midlife crisis and builds a Mid-Life Crisis-Inator In a live-action intro, Dan Povenmire and Jeff "Swampy" Marsh, the creators of the show, read some fan letters.One of the letters asks if they will see Phineas and Ferb as teenagers, and Dan replies they will and introduce the episode taking place ten years in the future.