Horatio's son goes missing when a prison transport is attacked. Upon learning the identity of Kyle, he is targeted in order to get at Lt. Caine, who must find him before it is too late.
Meanwhile, Ryan causes tension with his former colleagues when he is hired as an expert witness for the defense.
Quest roles:
Shane Conrad, Evan Ellingson, Christina Chang(State Attorney Rebecca Nevins), Jessica Szohr, Aries Spears, Keith Hamilton Cobb, David Newsom, Chris William Martin, Steve Toussaint, John Sharian, Erika Schaefer