In Castle The G.D.S (which stands for The Greatest Detective Society) Rick heads to Los Angeles to track down the mystery of his missing time. After finding the clue in last week’s episode a’la OldBoy, Castle knows that Korea Town in LA was a clue.
He brings Alexis (Molly C. Quinn) and Hayley Vargas (Toks Olagundoye) with him and as seen in the first sneak peek, the ladies decide to drool over the delivery men while Richard gets an invite to The G.D.S.
Hayley tells Rick that the society is a sort of private detective fairy tale.
Castle is recruited to help solve a murder and he, along with Hayley begin to follow the trail and Rick meets with an old acquaintance as part of his investigation. Things turn deadly once he agrees to look into the death.
The G.D.S. features Nathan Fillion’s old friend and cast-mate Summer Glau and former Longmire and Agent X actor Gerald McRaney
Summer Glau plays Kendall Frost, a stimulating and exciting private detective fromLos Angeles that tries to beat Rick to the punch at solving the murder. McRaney is Mason Wood, the head of the G.D.S. aka the Greatest Detective Society. Bad Boys II actor Jason Manual Olazabal is Detective Menendez.
In the second sneak peek Desperate Housewives actor Doug Savant appears as the new studio head that Castle has dealt with before; Victor Nigel, the man who brought “Heat Wave” to the screen and in the sneak peek below Nigel tells Rick, and Hayley that their showing up is “fate.”
The G.D.S was written by Alexi Hawley and is directed by John Terlesky. The episode airs Monday on ABC.