I figured since E explained Awakening I think I should explain the plot of the X-Men RPG I had started.
The conclusion was that Apocalypse had somehow found a way to go to Otherworld using Captain Britain's powers. Gambit was to betray the X-Team to Sinister by giving Sinister Mimic in exchange for the rest of the X-Men's freedom. This would've led to the team defeating Sinister and leaving Gambit behind on Earth while Mimic used the Tallus to go to Otherworld (See I'm glad Gray chose Mimic) there they would've battled Apocalypse and his horsemen among them the resurrected Storm.
Apocalypse's plan was that he was searching for Omega level mutants to rid himself of his need for the Lazarus chamber. At full power he would be unbeatable but the X-Men would've just barely stopped him in time.