Hawaii Five-0 Season 2 Trailer: Terry O'Quinn Rides to the Rescue

As it would turn out, John Locke may be the key to Steve McGarrett’s freedom.

The first trailer for the second season of CBS’ high-octane Hawaii Five-0 is out, and it offers the first video of Lost alum Terry O’Quinn as Joe White, the Navy Seal Lt. Commander who taught McGarrett (played by Alex O’Loughlin) everything he knows — except how to stay out of jail, apparently.

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Also within the promo, Losties can also enjoy the reunion of O’Quinn and Danial Dae Kim, whose Chin Ho Kelly gives McGarrett’s mentor a warm welcome to their world.

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Check out the full trailer below. Five-0 premieres its new season Monday, Sept. 19, at 10/9c.