▁control , ▁and ▁uses ▁them ▁to ▁capture ▁R eli ant . ▁Learning ▁of ▁the ▁Gen esis ▁Device , ▁Khan ▁attacks ▁space ▁station ▁Reg ula ▁I ▁where ▁the ▁device ▁is ▁being ▁developed ▁by ▁Kirk ' s ▁former ▁lo ver , ▁Dr . ▁Carol ▁Marcus , ▁and ▁their ▁son , ▁David . ▁ ▁Kirk ▁assumes ▁command ▁of ▁Enter prise ▁after ▁the ▁ship , ▁deployed ▁on ▁a ▁training ▁cru ise , ▁receives ▁a ▁dist ress ▁call ▁from ▁Reg ula ▁I . ▁En ▁route , ▁Enter prise ▁is ▁amb ushed ▁and ▁cri pp led ▁by ▁R eli ant . ▁Khan ▁offers ▁to ▁spare ▁Kirk ' s ▁crew ▁if ▁they ▁rel in qu ish ▁all ▁material ▁related ▁to ▁Gen esis ; ▁Kirk ▁instead ▁st alls ▁for ▁time ▁and ▁rem ot ely ▁low ers ▁R eli ants ▁shield s , ▁en abling ▁a ▁counter - att ack . ▁Khan ▁is ▁forced ▁to ▁retre at ▁and ▁effect ▁rep airs , ▁while ▁Enter prise ▁lim ps ▁to ▁Reg ula ▁I . ▁Kirk , ▁Mc Co y , ▁and ▁Sa av ik ▁beam ▁to ▁the ▁station ▁and ▁find ▁Ter rell ▁and ▁Che kov ▁alive , ▁along ▁with ▁the ▁sla ugh tered ▁members ▁of ▁Marcus ' s ▁team . ▁They ▁soon ▁find ▁Carol ▁and ▁David ▁hiding ▁Gen esis ▁deep ▁inside ▁the ▁nearby ▁planet oid . ▁Khan , ▁having ▁used ▁Ter rell ▁and ▁Che kov ▁as ▁sp ies , ▁orders ▁them ▁to ▁kill ▁Kirk ; ▁Ter rell ▁res ists ▁the ▁e el ' s ▁influence ▁and ▁k ills ▁himself , ▁while ▁Che kov ▁col