NGTV Guide: Monday, October 31

2 Broke Girls – 8:30/7:30c CBS
“And the Pretty Problem” – Caroline enrolls herself and Max in a cake-decorating class to increase their skill level and take their cupcake business to the next level.

Terra Nova – 9/8c FOX
“Bylaw” – Jim and Taylor investigate the first murder in the colony; Skye helps Josh find a way to reunite with his girlfriend from 2149; Elisabeth and Zoe try to help an unborn ankylosaurus survive.

Castle – 10/9c ABC
“Cops & Robbers” – When Castle and Martha are taken hostage by a crew of bank robbers dressed in hospital scrubs and using classic television doctor names (Trapper John M.D., Dr. Huxtable, Dr. Quinn Medicine Woman and Dr. Doogie Howser), Beckett finds herself on the outside, desperately trying to rescue them — which proves to be even more difficult with a by-the-book hostage negotiator (guest star Dean Norris) watching her every move. Castle becomes the de facto leader of the hostages, which includes Barry Livingston (“My Three Sons”), and discovers that the robbery is actually a skillfully orchestrated distraction for an even more sinister plan. But with Castle stuck on the inside and Beckett on the outside, will either be able to foil the bank robbers’ plans before it is too late?

Hawaii Five-O – 10/9c CBS
“Ka Iwi Kapu (Sacred Bones)” – When the Five-0s investigate the murder of a young couple filming a spooky documentary about a traditional Hawaiian burial site, they are threatened by a drifter who puts a curse on Danny.