Once Upon a Time, Doctor Who and more
Danny's mother is questioned by the FBI. Meanwhile, McGarrett partners with a young man with autism who may have information that could solve the murder of the man's only friend.
An explorer on a polar expedition is murdered, and the convoluted case turns even more confusing when Castle determines the elusive killer is trying to fool everyone.
The investigation into an ADA's murder is threatened by Castle's eagerness to help a call girl involved in the case. Elsewhere, Alexis reveals a major secret to Beckett instead of her father.
Download the TV Guide app for iPhone, iPad and Android!