Crossbones works for the Red Skull leader of the A.I.M and run his Skeleton Crew. They are something like his elite trooper, but he had a face-off with the Black Tarantula then Caption America came in and as three of them battled. The Black Tarantula made his get way leaving Crossbones and Caption America to fight it out and when it seen that Crossbones had Caption America the next thing he knew is that he waking up in a detention center that is run by S.H.I.E.L.D.