chunk: The Enterprise embarks on a three-week training voyage. Kirk assumes command after the ship receives a distress call from Regula I. En route, the Enterprise is ambushed and crippled by the Reliant, leading to the deaths and injuries of many trainees. Khan hails the Enterprise and offers to spare Kirk's crew if they relinquish all material related to Genesis. Kirk stalls for time and uses the Reliant's prefix code to remotely lower its shields, allowing the Enterprise to counter-attack. Khan is forced to retreat and effect repairs, while the Enterprise limps to Regula I. Kirk, McCoy, and Saavik beam to the station and find Terrell and Chekov alive, along with slaughtered members of Marcus's team. They soon find Carol and David hiding deep inside the planetoid of Regula. Khan, having used Terrell and Chekov as spies, orders them to kill Kirk; Terrell resists the eel's influence and kills himself while Chekov collapses as the eel leaves his body. Khan then transports Genesis aboard the