16+Season 3
One question changes everything.
Synopsis
What If...? Season 3 (2024), eight episodes — the final season — watch online on iFILM. The first two seasons wandered the multiverse freely; Season 3 has a destination it's been building toward.
The episode premises dig into recent MCU ground: Bruce Banner's failed Hulk cure creates a monster and forces the Avengers into giant mechs. Agatha Harkness goes undercover at Howard Stark's studio to carry out a ritual against an extinction-scale threat. Red Guardian derails the Winter Soldier's 1991 mission before it can reach Howard and Maria Stark. Riri Williams, Okoye, and Valkyrie navigate a world where the Celestial Emergence wasn't stopped and Earth broke apart. Shang-Chi and Kate Bishop run a frontier justice operation in 1872. Then the two-part finale calls the Watcher to account for every intervention he has made across all three seasons — heroes pulled from separate universes must decide whether he deserves saving.
Season 3 closes the loop the first season opened. The Watcher's arc finally reaches a verdict, and after three seasons the anthology has earned that payoff. Stream What If...? Season 3, all episodes, online on iFILM.
8 episodes
S3·E1What If... The Hulk Fought the Mech Avengers?
Captain America/Sam Wilson must suit up in a colossal mech suit to battle Bruce Banner after an attempt to cure himself of the Hulk goes horribly wrong. Bucky Barnes, Monica Rambeau, Moon Knight, and others must join Sam as his new team of Mech Avengers.
S3·E2What If... Agatha Went to Hollywood?
On the set of Stark Pictures' first production, the playboy auteur quickly finds himself enchanted by his bewitching lead actress, Agatha Harkness. Little does she know there will be another superpower co-star on the call sheet… Kingo.
S3·E3What If... The Red Guardian Stopped the Winter Soldier?
It is 1991, and the Red Guardian takes it upon himself to join a high-profile mission and prove himself to his Red Room superiors. When his antics interfere with the Winter Soldier's own mission to kill Howard Stark, the two Soviet supersoldiers must form an alliance to escape the United States.
S3·E4What If... Howard the Duck Got Hitched?
Howard the Duck and Darcy Lewis find themselves on an intergalactic pleasure cruise. When dangerous factions from across the galaxy descend to threaten their trip, they must discover their own cosmic powers to withstand the onslaught.
S3·E5What If... The Emergence Destroyed the Earth?
In a Universe where The Eternals never stopped The Emergence, the birth of an incubating Celestial shatters the Earth. Civilization endures on the rocky remnants of our planet, where Quentin Beck leads an authoritarian regime until freedom fighters recruit Riri Williams on a deadly mission to take him down.
S3·E6What If... 1872?
In a universe where the heroes of the MCU live in the Old West, Shang-Chi and his pistol-packing partner, Kate Bishop, traverse the frontier, saving the innocent from the evils of The Hood.
S3·E7What If... The Watcher Disappeared? (1)
The Watcher must stand trial for his many interventions.
S3·E8What If... What If? (2)
The end of the beginning...
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