Viewers of ABC's "Last Resort" have heard about the new technology that's aboard Capt. Marcus Chaplain's sub. In Thursday's taut, sub-centered episode, they'll get to see it in action.

Thursday's episode of the drama is like an old-school sub movie: Chaplin and his crew need to evade a blockade around the island that they fled to after they were fired upon by another ship. (Note: Taking off with a nuclear sub will get you into a certain amount of trouble.)

In this tense episode, Chaplin (Andre Braugher) and his XO Sam Kendal (Scott Speedman) use all the tricks in their arsenal to get the sub around the blockade in order to complete a dangerous mission involving missing crew members.

"Last Resort" airs on Thursdays at 8 p.m. ET on ABC.

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