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Castle

Watch Castle Season 6 Episode 18 online to see Rick deal with... ninja?!?

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Looking to watch Castle Season 6 Episode 18 online? TV Fanatic is your destination for every paid and free streaming option of the Castle S6E18 full episode from 1 affiliates.

Rating: 4.1 / 5.0 (117 Votes)

Watch Castle Season 6 Episode 18 online at TV Fanatic and learn why Rick and Kate think they are battling ninjas.

Episode Details

Castle Season 6 Episode 18: "The Way of the Ninja"

When Castle and Beckett investigate the murder of a Japanese ballet dancer, they realize that she may have be killed by a ninja, an now they're after Castle.