"Zero Hour" stars, from left, Addison Timlin as Rachel, Scott...

"Zero Hour" stars, from left, Addison Timlin as Rachel, Scott Michael Foster as Aaron and Anthony Edwards as Hank. Credit: HANDOUT

But "Zero Hour" represents a broken promise. Upon leaving "ER," he said he was done with one-hour dramas, and in the Galliston role it's easy to read his lingering ambivalence. Edwards is not fully present and accounted for here -- maybe due to a 10-year accumulation of rust. He was probably the single best actor (of hundreds) over "ER's" run, but there's none of that old swagger and confidence, none of that Dr. Greene arrogance or even soul -- and the absence is a little jarring. Sure, given time that should all return, but will "Zero Hour" get that time?

If you move beyond the hokey dialogue and the Dan Brown-lite Ancient Conspiracy business, you'll probably find yourself hoping that it does -- if only to see one of TV's more accomplished actors hit his stride once again.

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