Murdoc moves forward with his plans for revenge against MacGyver by recruiting his recently released former cellmate to infiltrate the Phoenix Complex as a "lab technician" and kill every agent inside.
McGarrett and Catherine travel to Afghanistan to stop the Taliban from harming a young boy whose family saved Catherine's life years ago.
Mac and the team partner with D.B. Russell to outsmart Christine's kidnappers before they run out of time to save her life, in the second part of a two-part crossover. Ted Danson guest stars as CSI D.B. Russell. (TV-14 L, V)
A case exposes a link between a Mexican drug cartel and a terrorist.
As the hostage situation continues, Claire secretly negotiates with Yusuf al Ahmadi. Frank confronts Hammerschmidt.
