Flashpoint (8pm, CBS) - A mother and daughter are abducted, and the search to find them results in the revelation of a dark family secret.
Whale Wars (9pm, Animal Planet) - The Bob Barker and Gojira attack and disable the harpoon ship that has been trailing them. Later, the Barker continues to hunt for the Nisshin Maru.
Sex Change Hospital (10pm, Discovery Fit & Health) - This 6-part series, which first aired in the U.K., follows patients undergoing sexual-reassignment surgery at a hospital in Colorado under the guidance of Dr. Marci Bowers (formerly Mark Bowers). Tonight, male-to-female transsexual with two children prepares for breast augmentation surgery and genital-reassignment surgery. Also, a patient who used drugs as a coping mechanism undergoes a hysterectomy.
Invitation Only (10pm, CMT) - Jason Aldean performs and answers fans' questions. Songs include "Big Green Tractor," "My Kinda Party," and "Dirt Road Anthem."
Haven (10pm, Syfy) - The town's docks start attacking people while the other Audrey Parker probes Audrey's identity crisis.
American Restoration (10pm, History) - Tonight, a 1950s bumper car and a 1960s coin-operated motorcycle.