Comic-book fans have long wondered what would happen when some of their favorite characters faced off with one another, like daydreaming if Superman is faster than the Flash or if Batman could take down Captain America.
Those pondering what would happen if Phineas and Ferb teamed with the Hulk and Iron Man? Well, you'll get a look at that this weekend.
A 90-second sneak peek of Phineas and Ferb: Mission Marvel, which teams the Disney animated pair with A-list Marvel Comics superheroes, airs on Sunday during the premiere (11 a.m. ET/PT) of the Marvel's Avengers Assemble animated series on Disney XD.
The Mission Marvel crossover TV special premieres Aug. 16 (8 p.m. ET/PT) on Disney Channel. The episode features Phineas and Ferb working with Spider-Man, the Avengers and others to save the town of Danville from the likes of Dr. Doofenshmirtz and Marvel supervillains he's working with like Red Skull, Whiplash, Venom and M.O.D.O.K.