Quite a night for Shane Brennan Tuesday. After a terrific NCIS, the executive producer's spinoff delivered a thrilling installment as well, continuing the story of Agent Vaile.

It was back in January that Dom went "Missing," nabbed by Colombian gangsters and handed over to more sinister, unknown captors who evaded the L.A. team's pursuit.

Last night, NCIS: Los Angeles finally revisited the issue of Dom's capture in "Found." The result was non-stop action reminiscent of a big-budget Jerry Bruckheimer film.

Upon receiving a video of Agent Vail being held by Muslim extremists demanding the return of an imprisoned terrorist in exchange, the OSP team sprung into action.

We had barely gotten to know Dom when he vanished, and some say his character was mishandled as a result, his loss clearly weighed on the team, particularly Sam.

Naturally, Sam would have boarded a plane for Africa, where he believed his young protege was being held, instantly had Callen and Hetty not talked him out of it.

Dom was imprisoned by extremists hiding almost in plain sight.

Sam's protective feelings and guilt were on display throughout, showcasing LL Cool J's surprising acting chops as the team raced against a 24-hour deadline to free Dom.

Surprising and captivating scenes weren't in short supply.

Getting one of the suspects to talk by fake-torturing a fellow NCIS agent was a clever ploy, and led Callen to an L.A. financier suspected of funding terrorist dealings.

Also unexpected? The return of Mo, the Sudanese boy mentored by Sam until he was recruited by extremists and returned to his homeland (supposedly) in "Breach."

Mo could clearly be seen on the video sent to NCIS, bringing back even more painful memories for Sam. With time running out, the search grew even more desperate.

But where was Dom being held?

We did not expect that he would be right under their noses in Los Angeles the whole time, although it began to make sense the longer the team stayed in the country.

We also didn't expect Dom to be found, and nearly freed, only to be killed in a firefight, but it might have been more unrealistic to have everyone escape unscathed.

Unlikely as it seemed that their paths would cross, the extremists did open the door by sending the video, and clues did lead to the financier's performing arts center.

The scene were Dom (Adam Jamal Craig) broke free with Mo's help and realized he was right smack in L.A. on the roof was awesome, as was the ensuing shootout.

Callen, Kensi and Sam were their typical bad ass selves during the full-blown gun battle that broke out, with vintage trickery from G., employing the enemy's disguise.

That entire sequence, ending in Dom's death, was startlingly intense. While more could have been done with Dom's character, he certainly went out in a blaze of glory.

Sometimes NCIS: Los Angeles overdoes its action sequences, but given the stakes last night, it felt warranted, and the conclusion both emotional and heart-pounding.

What did you think of the episode? Are you upset Dom was introduced only to be killed? Or did that add to the surprise impact? Share your comments!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.