There is no theme off limits with the explosive Season 6 of "Hawaii Five-O." This includes wild treasure hunts and crazy people breaking other crazy people out of prison -- and now, scuba divers.

Episode 6 is titled "Ua 'O'Oloku Ke Anu I Na Mauna" and translates to "The Chilling Storm Is on the Mountains." It will air on broadcast network CBS this Friday, Oct. 9 at 9 p.m. EDT, according to TV Guide.

It seems as though the time has finally come for fans to see just what they have been waiting for since the season finale last year on the show -- Steve and Catherine making it official.

According to Spoilers Guide, the show is going to be double-themed this week with the same action of the paradise police drama mixed in with the long-standing drama of how Steve and Catherine will end up.

It will all start out with the murder of a scuba diver. This actually takes on a matter of urgency because the diver was killed with a gun that was previously used in another murder, which leads the detectives to more sustainable clues that will eventually give them answers to both crimes.

Suffice it to say that Steve has been finally found what he wants in his life. He has not just been chasing his tail around in the past two episodes but rather planning the perfect way to propose to Catherine, whom he considers to be the love of his life.

This episode will finally feature the scene that fans have been waiting for, which will put him on his knee proposing marriage to the lovely Catherine. But that might not go off as he originally planned.

With their cat and mouse game in the last episode featuring the pyromaniacs trying to outdo each other, the season may finally start getting down to the real stories that transcend the weekly events.

See the previews below.