Sentry shared a similar history to his Earth-616 counter-part until Emma Frost did not alter the mind of Gwen Stacy when Peter Parker learned the truth about the House of M reality. This eventually caused Gwen to arrive on the main universe. Sentry fought in a battle against several villains whenhe disappeared, which unknown to the New Avengers was caused by Gwen's existence. His fate after Gwen attempted to kill herself and reality faded is currently unknown.
Powers and Abilities
Seemingly those of Robert Reynolds (Earth-616)#Powers.