NGTV Guide: Monday, March 23

We’ve got some juicy stuff on tap tonight as Chuck returns to kick off a 6-episode streak of goodness leading to the season finale; Gossip Girl serves up Girl Gone Wild Blair; and someone else kicks the bucket on Castle.

Chuck – NBC 8/7c
“Chuck vs. the Predator” – After Chuck  is contacted by the mastermind behind the Intersect Computer, he must decide who he can trust—Sarah and Casey or the mysterious scientist who might be able to erase the Intersect from his mind. Meanwhile, a conflict breaks out between the Burbank Buy More and the more prestigious Beverly Hills branch.

Gossip Girl – the CW 8/7c
“The Grandfather” – Spurred by recent changes in her life, Blair seeks out a wilder lifestyle, and this worries Chuck and Serena. Meanwhile, Vanessa suggests that Nate make amends with the Vanderbilts, and Lily and Rufus make lists of their past lovers.

Castle – ABC 10/9c
“Hedge Fund Homeboys” – A once wealthy teenage boy whose family has fallen on hard times is found dead in a rowboat floating along the lake in Central Park. As Castle and Beckett try to piece together the events leading up to his death, his friends do everything in their power to thwart the investigation. As they unravel the truth from the lies, a story of betrayal and obsession emerges. Meanwhile, Castle debates whether he can leave Martha home alone while he chaperones Alexis’ class trip to Washington, DC. Martha might be an aspiring “Life Coach,” but that doesn’t mean she’s trustworthy.