NCIS: Lost at Sea

The team is called in to investigate when three dehydrated survivors from a helicopter crash are discovered. The pilot is initially missing, but his body later washes ashore with a gunshot wound to the head. Things get complicated when one of the crew members tells the agents the chopper was hit by another aircraft, while another states that the pilot tried to kill them all by crashing into the sea on purpose. American drama, starring Mark Harmon and David McCallum