Best Episodes of What If...?

Natasha Romanoff and Clint Barton seek to destroy killer-robot Ultron following a cataclysmic event.

A grief-stricken Doctor Strange uses the Eye of Agamotto in a dangerous effort to change the past.

The Watcher breaks his oath and recruits heroes from across the multiverse to battle against Ultron.

The rough-and-tumble space pirates known as the Ravagers abduct T’Challa instead of Peter Quill.

Nick Fury struggles to launch The Avengers when candidates are targeted by a serial killer.

Hela—stripped of her powers and banished to Earth—comes across a new source of power: the Ten Rings.

Captain Carter tries to undo the anomaly that strands familiar heroes and villains in the year 1602.

When The Avengers are infected by a zombie plague, surviving heroes search for a cure.

A Mohawk woman ventures into the waters of the Forbidden Lake to help save her people.

Captain Carter discovers the greatest threat to all existence may be closer than she realizes.

When Ego and a young Peter Quill threaten Earth in 1988, Howard Stark and Peggy Carter form a team.

Tony Stark challenges The Grandmaster, leading to a grand prix-turned-demolition-derby death match.

Captain Carter's mission to save Steve Rogers sets her on a collision course with new enemies.

When Steve Rogers is seriously injured, Peggy Carter becomes the world’s first Super Soldier.

When Nebula is recruited to join the Nova Corps, she sets out to prove her detective skills.

The Watcher must stand trial for his many interventions.

An American soldier called Killmonger rescues Tony Stark when his Humvee is attacked in Afghanistan.

When Avengers Tower is attacked during the holiday party, Happy Hogan must prove his hero chops.

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.

The end of the beginning...

Thor, who never learned to be a good hero, throws an out-of-control intergalactic party on 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.

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.

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.

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.

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.