When the heroes arrived, a Sentry robot attacked them. Thunderstrike's sonic blasts and J2's superstrength were not slowing the attacker. Stinger was able to blind the robot's optic sensors with sting darts, providing an opening for John to enter the ship and try to turn off the robotic sentry. When John made contact with the ship's console, a strange energy surge ripped through the ship's computers and struck him. The energy wave reconfigured John's DNA, making him genetically similar to a Kree warrior. Finding himself clad in a green-and-white costume, similar to the original costume of Mar-Vell, John discovered that he had acquired great powers.