Air Date: Monday 9/19

Us Rating: ***

With deeper emotional stakes, this crime drama has gone from breezy to crackling. Last season ended on a boilerplate cliffhanger: After Beckett (Stana Katic) was gunned down, Castle (Nathan Fillion) declared his love just as she fell unconscious. Now the duo avoid personal talk as they go after her assailant, but the feelings bubbling up create powerful moments. (ABC, 10 P.M.)