The Mission to Delta Omicron III

The USS Enterprise NCC-1701, under the command of Captain James T. Kirk, went to planet Delta Omicron III. Captain Kirk beamed down and was captured by Romulan agents on the planet. Spock devised a plan to rescue Kirk. He put the plan into action and Kirk was freed. 1 Federation security officer and 10 Romulans were killed in the rescue. Then the Enterprise continued on its mission.