The death of a polo player who literally loses his head is investigated. Meanwhile, McGarrett’s mother pays him an unexpected visit.

Ari encourages Vince to shoot a lucrative foreign commercial, and Drama wants to get in on the action. Eric struggles to convince Walsh to release an advance print of ‘Queens…

As Kate and Sawyer journey back to the main island with Karl, who is exhibiting effects of the brainwashing video, they argue over whether to go back and save Jack….

When a Thai prince visits the U.S., Mack, Grey and Williams are up for bodyguard duty. In the mean time, Jonas and Bob jump out of a plane to catch…

Howard and Felton are in court over the Pony Johnson case, Crosetti and Lewis go head to head with the Secret Service and Bolander and Munch argue over drug legalization….