The first part of Hulk's "sequel" was neatly nestled into the center of the third film in the Thor franchise, Thor: Ragnarok. The Taika-Waititi-directed film masterfully rebooted the God of Thunder's storyline. But it also managed to deliver some brutally poetic justice to the long-neglected saga of the Green Goliath by bringing elements of one of Hulk's greatest adventures to the silver screen: Planet Hulk.

After being hurled into deep space by Hela early in the film, Thor found himself imprisoned on the garbage planet of Sakaar, where he was forced to fight as a gladiator against the Grandmaster's champion. Of course, that champion ended up being none other than Hulk, Thor's "friend from work." From there, it was revealed that Hulk had come to the planet after Avengers: Age of Ultron, when he'd last been seen using the Quinjet to fly off into space.

In the interim, a period of two years, Hulk had become attached to his new life as a gladiator, and it ultimately took Black Widow's voice, played back on the Quinjet, to calm the big guy down enough to let Banner regain the upper hand. From there the group of heroes led the other gladiators out of their captivity and overthrew the Grandmaster, and Hulk helped defeat Hela, closing the curtain on the first part of his three-part act.