let me get a section from the wiki.
Ultimate Gambit
Cover of Ultimate X-Men Annual #1, featuring Gambit and Rogue. Art by Stuart Immonen.
In this universe, Remy LeBeau is a Cajun thief, similar to the normal mainstream version. A flashback shows that Remy was beaten maliciously by his father; readers can suspect that the young boy later ran away. He was subsequently brought up by a thief, who taught him the arts of stealing. His connection to Mister Sinister has been hinted but has yet to be made clear, though a scientist resembling Essex is seen by Rogue when she touches Gambit. Later as an adult, Remy lived on the streets of New York, performing card tricks with his "magic", and continued to steal.
Gambit at one point had been offered by Charles Xavier, to join the X-Men, but he refused. He also faced Hammerhead and defeated him by making his adamantium skull explode.
At some point he met scouts in New Orleans who represented Andreas Von Strucker and Andrea Von Strucker, the Fenris Twins. The twins were presidents of Fenris International and secretly mutants. Their goal was to obtain mutant supremacy through economic empowerment. To accomplish this, they needed to find out the secrets of their business rivals. The twins made Gambit an offer that he could not refuse, to participate in espionage activities. In addition to being paid, they cleaned up his accent, and helped him control his powers.
Gambit ran into the X-Men again at the Coney Island Fair, when he was sent by the Fenris Twins to recruit Rogue. Rogue would be an ideal employee, since her powers (which include viewing others’ memories) would be useful for learning others' secrets. However, because of the unethical aspect of the job, Rogue refused. The Fenris Twins angrily told her to reconsider her decision. Gambit saw the twins threatening Rogue. He supported Rogue, subdued the twins, and escaped with her. Afterwards, Gambit asked Rogue to come with him, commenting on how she and he both were alike. Rogue agreed, and left the X-Men.
In a battle with Ultimate Juggernaut, Gambit appears to suffer fatal injuries. As Rogue gives him the last kiss, she completely absorbes his powers, seemingly losing her own ability to syphon the memories and abilities of others.