Hawaii 5-0 Season 10 Episode 11 East Wind -- Ill Wind

In Hawaii 5-0 season 10 episode 11, titled "East Wind -- Ill Wind," the team is forced to work with a rogue MI-6 agent named Harry Langford, played by guest star Chris Vance, when a ruthless assassin with knowledge of classified government information is targeting former intelligence officers. Langford is a former colleague of Steve McGarrett's and offers his expertise in the espionage world to help the team track down the killer.

Meanwhile, Tani and Junior are tasked with protecting a witness who is set to testify against a dangerous drug lord. Their assignment takes them to a remote cabin in the woods where they must fend off attacks from the drug lord's henchmen who are determined to prevent the witness from testifying.

As the two storylines unfold, the team realizes that there may be a connection between the killer targeting former intelligence officers and the drug lord they are protecting the witness from. With Langford's help, they must uncover the truth before more lives are lost.

Throughout the episode, tensions between McGarrett and Langford rise as the two butt heads over their differing opinions on how to handle the situation. McGarrett, who values loyalty and following protocol, clashes with Langford, who prefers to operate outside of the law to get the job done.

The episode also touches on themes of loyalty and trust as Langford's motives are called into question and the team must decide whether or not they can rely on him to help them solve the case.

Overall, "East Wind -- Ill Wind" is an action-packed, suspenseful episode that keeps viewers on the edge of their seats as the team works to solve two high-stakes cases. The addition of Chris Vance as guest star adds an extra layer of intrigue to the episode as his character's true intentions remain shrouded in mystery.