Summary After his gambit to destroy the Chitauri Fleet during the battle of New York strands him on the planet of Sakaar, Tony Stark’s efforts to overthrow The Grandmaster lead to a ceremonial, grand prix-turned-demolition-derby—a death match that could land Tony on the Sakaarian throne. Our Take Confident and engaging. The plot moves, the stakes…

Summary When Justin Hammer lays siege to Avengers Tower during the annual holiday party, there’s only one person left on site to stop him – Happy Hogan. But in setting out to prove his hero chops, Iron Man’s errand boy may end up transforming himself in more ways than one. Our Take Solid, satisfying television.…

Summary In 1988 after seeing his mother Meredith die, Peter Quill is abducted by a group of Ravengers led by Yondu Udonta sent by the Celestial planet Ego. However rather than having a change of heart and raising Quill as his own, Yondu gave him to Ego as originally planned. Taking his walkman away, Ego…

Summary In a world where Ronan deposes Thanos long before the events of “Infinity War,” Nebula is recruited to join the Nova Corps. Desperate to escape her father’s shadow, she sets out to prove her detective chops. Our Take A well-built episode with more hits than misses. Worth your time.

Summary In order to defeat Ultron, The Watcher breaks his oath and assembles a team of heroes from across the timelines. Our Take An all-timer. If you sample one episode of What If…?, make it this one.

Summary Natasha Romanoff and Clint Barton seek to destroy killer-robot Ultron following a cataclysmic event. Our Take Everything What If…? does well, done at full power. Genuinely great television.

Summary Thor, who never learned to be a good hero, throws an out-of-control intergalactic party on Earth. He learns a neat trick the Skrulls can do, then meets Jane Foster for the first time. Our Take Solid, satisfying television. The season’s engine keeps turning and the character work pays.

Summary An American soldier called Killmonger rescues Tony Stark when his Humvee is attacked in Afghanistan. Our Take Middle-of-the-road. Watchable, but you’ll forget the details by next episode.

Summary When The Avengers are infected by a zombie plague, surviving heroes search for a cure. Our Take A well-built episode with more hits than misses. Worth your time.

Summary After losing the love of his life in a car crash, Doctor Strange becomes consumed with finding a spell that can bring Christine back to life. Our Take A standout hour — the kind of episode that justifies the whole series. What If…? at the top of its game.