Lee was assigned to the Enterprise at Starbase 29. Shortly thereafter, the ship investigated the crash of the freighter Arcade on Dinar IV. On his first assignment, Lee was a member of a three-man security team with Hunter and Jackson. They accompanied Captain James T. Kirk, Captain Spock, Doctor Leonard McCoy and Commander Pavel Chekov to investigate the crash site, where the people who claimed to be the crew of the Arcade proved to be Haigy raiders who had captured the ship. When Ventura, the leader of the raiders, pulled his disruptor on Kirk, Lee jumped in front of the captain and fired at Ventura, who fired back, killing Lee.