The Best Episodes Written By Kate Sargeant

The agents infiltrate the lake house to seize the nuke. But as tensions rise within the Russian ranks, the team finds themselves caught in the crossfire.

When a body is found at a sci-fi convention, Castle and Beckett are warped into the heart of fandom -- a world of egotistic celebrities, diehard costumed fans and enough drama for two galaxies.

When a woman dressed as Red Riding Hood is found dead in the woods with claw marks covering her body, and soon after a murdered Snow White is discovered with a poison apple in her hand, Castle & Beckett find themselves on a Grimm hunt to catch a fairytale killer before he kills again. But nothing is as it seems in a case filled with deceit, betrayal, secrets and murder

Garza and the team are on the hunt for a ruthless gang leader on a mission for revenge. Atlas comes to town to reconnect with Laura, but the two cannot seem to see eye-to-eye, and Simone and Carter grapple with letting go of old grudges. The crossover starts on The Rookie S05E17 The Enemy Within (I).

When a half-naked woman is found covered in caramel sauce and hanging by bondage cuffs in a public park, Castle and Beckett's investigation takes them into New York's underground world of sexual domination. Naturally the case serves as sexy fodder for their already charged relationship banter.

Remi races against the ever-worsening ZIP poisoning to enact her ultimate plan.

An active bomber forces the team to delve into a case from their past.

The team discovers an international conspiracy when a deadly weapon is stolen, Jane supports Weller when someone from his past dredges up painful memories, and Patterson and Rich contend with their newly released hacker accomplice.