Will Five-0 be down a member by seasons end?

One of their own is in jeopardy, executive producer Peter M. Lenkov tells EW.

Usually were out there saving other peoples lives.

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Credit: Norman Shapiro/CBS

In this case, its one of our own whose life we have to save.

Its all hands on deck to make that happen.

One of them is down and everybody has to fight to save that persons life.

It comes down to the final seconds of the show.

But McGarrett isnt the only one in danger.

During the first hour of the finale, the team finally tracks down Gabriel (Christopher Sean).

Check out an exclusive sneak peek of the finale to see how that works out.

The two-hourHawaii Five-0finale kicks off Friday at 9 p.m.