Secret Wars II #5A (1985)

Secret Wars II - Despair!
Beyonder dismantles a train before it can do him the inconvenience of injuring him. Boom Boom is aboard, and tags along to get help finding a means to get to a rumoured school for mutants somewhere in Westchester. Things eventually get out of hand, and virtually every hero on the planet comes after him in one assault.
Release Date: 1985