NGTV Guide: Thursday, October 21

The Vampire Diaries – the CW 8/7c
“Plan B” – Despite Elena’s (Nina Dobrev) efforts to keep Jeremy (Steven R. McQueen) safe, he offers to help Damon (Ian Somerhalder) and Alaric (Matt Davis) deal with Katherine (Nina Dobrev)… Sheriff Forbes (Marguerite MacIntyre) and Caroline (Candice Accola) share a few rare moments of quality mother/daughter time. Bonnie (Katerina Graham) accidentally discovers new information about Mason (guest star Taylor Kinney) and shares it with Stefan (Paul Wesley), leading Damon to take matters into his own hands.

Nikita – the CW 9/8c
“Resistance” – A bus filled with Division recruits is attacked by terrorists who kidnap Alex (Lyndsy Fonseca) and Thom (Ashton Holmes), both of whom are unaware that this is a test by Division. Percy (Xander Berkeley), Michael (Shane West) and Amanda (Melinda Clarke) watch as Alex is tortured. Alex breaks free and contacts Nikita (Maggie Q) for help. Meanwhile, Nikita has earned Owen’s (guest star Devon Sawa, “Final Destination”) trust and he reveals some devastating news to Nikita about her fiance.

The Mentalist – CBS 10/9c
“The Red Ponies” – Patrick Jane and the CBI team hit the horse track when a jockey is found murdered and suspects abound.