“Boiling him down, McGarrett is a warrior with a huge heart,” executive producer Peter Lenkov tells EW. “From our first season, Catherine has stolen that heart and now he’s ready to take that major leap in their relationship six years later. It’s probably one of the bravest things this soldier has ever done. And yes, you may have heard that Sarah Carter is coming in as Lynn, a nature lover with whom McGarrett goes on a wild adventure. Let’s just say that it’s going to be a busy fall for our head of Five-0.”
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