You know what? It's going to be hard enough talking about Episode 2 without revealing some of the twists this episode puts players through, but to have to avoid talking about some of the major events in Episode 1: Tangled Up in Blue as well? Nope. Here comes some big-ole-spoilers, so if you are reading this review and haven't played the first episode yet, then shame on you. It was fun. Go play it.
Ready? Okay. Thanos is dead. The Guardians followed him to a strange planet, into a strange temple, and teamed up against the Mad Titan. They defeated him once and for all and grabbed the odd artifact he was hunting.
With Thanos out and the Guardians selling off his body in order to pay back the massive tab they accrued during the after party, Peter Quill/Star-Lord had to decide who to sell the big evil creature's corpse to. If you took Rocket's advice, you chose to sell him to The Collector, meanwhile under Gamora's instruction, you could have chosen the Nova Corps. You don't get as much money, but you could have haggled for being cleared of all past and future crimes. Either way, things didn't go as Star-Lord planned and the Guardians were attacked by the last few living Kree.
The Kree were, of course, after the Eternity Forge and they were able to take it from the Guardians. In the ensuing battle, Peter is killed, but the artifact brings him back to life. Why? What exactly can the Eternity Forge do? What's the deal with the strange vision with Peter's mother in it? Well, of course, Under Pressure is too early in the season to answer these questions, but the Guardians do start realizing that these are concerns they will need to look into.