Duration: 43m

TV-14 8.1 Crime / Drama / Action / Thriller

Scorpion S1E21

Walter learns a secret about Cabe's past that threatens the team, while Ralph risks his life to help.

Release Date: April 13, 2015 (USA)

Creator: Nick Santora

Cast: Elyes Gabel, Katherine McPhee, Jaydyn Wong, Eddie Kaye Thomas, Ari Stidham, Riley B. Smith, Robert Patrick, Scott Porter, Tina Majorino