Castle › Season 7

S7 E16: The Wrong Stuff

When an astronaut, training for a trip to Mars, is mysteriously killed inside a Mars simulation, Castle and Beckett don spacesuits to investigate. But when they discover no one inside the sealed simulation could have committed the murder and no one from the outside could get in, the case takes a shocking turn

Air date	Feb 23, 2015
Runtime	44 minutes
TMDB rating	★ 6.8/10