Season 3 of Star Trek: Enterprise wrapped last week with "Zero Hour," the finale which will air on May 26.

In keeping with the discretionary nature of this shoot, we are remaining mum on any story details, though obviously the episode will climax the Enterprise crew's efforts to keep the Xindi Superweapon from destroying Earth. We're even keeping the guest cast under wraps for the time being. Expect some surprises.

Allan Kroeker, who has long been the go-to guy for season premieres and finales and other pivotal episodes, was the director on this segment. He last helmed "Azati Prime," along with season opener "The Xindi." Kroeker also directed last year's "The Expanse," as well as "Shockwave, Part I" and "Shockwave, Part II" and others, not to mention "Endgame," "What You Leave Behind" and other notable Star Trek credits.

Production on "Zero Hour" commenced Friday, March 5, for an eight-day shoot that concluded last Tuesday. No second-unit photography involving the principal cast is anticipated, as they are all now on hiatus, though certainly the visual effects and post-production crews will have their hands full until this installment is in the can. The wrap party for the cast and crew took place Thursday night at the White Lotus restaurant/nightclub in Hollywood.

This episode had not only one of the largest guest casts of the series, but one of the largest contingents of stunt players and extras, portraying everything from crewmen to MACOs to Xindi and assorted other aliens. Some of those extras were special guests of the show. Amy Ulen was a contest winner from Seattle visiting on behalf of the local UPN affiliate and radio station KZOK-FM, and she was accompanied by DJ Bob Rivers. Another contest winner was Brian D'Arcy from the Kansas City area, who won the walk-on role in a charity auction by Wired magazine benefiting the Starbright Foundation. The three guests donned NX-01 uniforms and spent a full day last Monday (the 15th) on the Engineering set. Amy will be providing a report of her experiences to STARTREK.COM soon (see links below).

As mentioned, "Zero Hour" will conclude the season on the last Wednesday in May. Further information as it becomes available will be posted in Episode Detail (no details are currently provided on that page).

For the next three weeks, UPN will double up on Star Trek: Enterprise repeats — at 8:00 and 9:00 p.m. on Wednesdays — before new episodes resume. The show will return to its original 8 p.m. timeslot for the remainder of the season.

The schedule as it currently stands is as follows (as always, this information is subject to change). For those UPN stations that re-air Enterprise the subsequent weekend, only the 8:00 episode in each case will run. Times shown are Eastern and Pacific.

3/24
8:00 Carpenter Street
9:00 Chosen Realm

3/31
8:00 Proving Ground
9:00 Stratagem

4/07
8:00 Harbinger
9:00 Doctor's Orders

4/14
8:00 Azati Prime (currently a repeat of Hatchery is not scheduled)

4/21
8:00 Damage

4/28
8:00 The Forgotten

5/05
8:00 E²

5/12
8:00 The Council

5/19
8:00 Countdown

5/26
8:00 Zero Hour

Please note: All production, story and scheduling information is subject to change.