[s2e21] Den Of Thieves -

: The victim is linked to Ike Thornton , Esposito's former partner from the 54th Precinct who disappeared years earlier.

The episode (Season 2, Episode 21) of Castle is a pivotal hour that balances a gritty, personal procedural case with the simmering, high-stakes romantic tension between Castle and Beckett. The Case: Shadow of the Past [S2E21] Den of Thieves

: The episode title refers not just to the criminals, but to the feeling that Demming is "stealing" Beckett away from Castle, and Racine’s ability to "steal" the lives of cops who get too close. : The victim is linked to Ike Thornton

: Watching Beckett and Demming bond over professional respect and shared experiences at the shooting range leaves Castle feeling like an outsider in Beckett's "real" world. : Watching Beckett and Demming bond over professional

: "Den of Thieves" examines the sacred bond between partners. Esposito’s unwavering (though tested) faith in Thornton mirrors Castle’s own evolving role as Beckett’s partner.

: Detective Demming continues his pursuit of Kate Beckett, much to Rick Castle's annoyance.