X-Men #5 (1991)

Author: John Byrne,Art: Jim Lee,Cover Art: Jim Lee. Continuing the high-stakes debut arc of Jim Lee's adjectiveless X-Men volume, X-Men #5 (carrying a February 1992 cover date) deepens the retroactively established Weapon X lore. The story, "Blowback," centers on Wolverine as he is brutally tortured by Omega Red and Matsu'o Tsurayaba. The Hand is attempting to psychically tear the location of the hidden Carbonadium Synthesizer from Logan's mind. The intense psychic invasion triggers a series of vivid, gritty Team X flashbacks to Berlin in the 1960s, showcasing Logan operating on a covert black-ops squad alongside Sabretooth and Maverick. Back in the present, Maverick infiltrates the Hand's Berlin compound to free the captive mutant, setting up an explosive showdown with Omega Red while Professor X and the X-Men race across Europe to back them up.