When the X-Men embark on a world tour to promote Xavier's book, Colossus inexplicably disappears to Russia. Cyclops and Jean Grey track him and find Peter working in a factory. Colossus tells them he left due to unhappiness with his place on the team and with life as a mutant, but Jean suggests that his true reason is unrequited feelings he has for a fellow team member. Peter later comes to terms with his "gift," and becomes a Russian national hero when he rescues the crew of an incapacitated submarine. He leaves Russia to rejoin the X-Men.