 In episode three 'Ghosts of Things Past', Kate becomes determined to prove that a man they pulled out of the ocean killed his best friend.In episode five, 'Under the Radar', Kate goes undercover with Billy "Spider" Webb, Josh "ET" Holiday and Pete "Buffer" Tomaszewski as illegal fisherman to capture a group of dangerous eco-militants.At the end of the episode, Mike asks her about her black-eye, and she responds 'it hurt a lot when it happened, but now I don't feel a thing', a possible parallel to her breakup with Mike.