Trent's nephew befriends a seemingly benign alien, but the NTSF team think it's dangerous.

Anti-terrorism time travelers join the team to prevent crimes.

Comic-Con's worst villains get loose on a plane.

Sam and Trent exchange faces to thwart a terrorist organization.

When Alphonse is captured in an assassination plot, the team joins forces with their British counterparts in a special double-episode movie event. Shot on-location in London.

Trent plans a cruise for the NTSF team, but he's got ulterior motives to capture a terrorist rumored to be hiding out on the ship. Meanwhile, Piper brings her new fiancé along for the trip.

Comic fans pose a threat to authors at a San Diego convention.

Commander Kove's little black book is stolen.

An NTSF agent from the past is called upon to capture an escaped criminal.

Piper's awkward college personality is revealed.

The NTSF gang show off their home security system and iPhone app.

Trent and Piper go undercover in school to find a kidnapper.

Trent hunts for restaurant terrorists and goes undercover in the Swedish pedicab-racing circuit.

A commencement address poses a great danger to the President of the Navy.

The team tries to protect a restaurant chain from violent competitors.

Trent is suspended and forced to spend time at home, where terrorists plot to attack him. His replacement, an old nemesis, is a hit at the NTSF.

Space-shuttle plans are stolen and sold to Mexico, so the team must retrieve them before the U.S. loses the space race.

The team is blamed for the death of Gary the Killer Whale.

Jessie and Sam head underground to infiltrate a group of crazed book sellers who are intent on destroying the Internet.

Trent tracks a dolphin serial killer and turns to a similar murderer in captivity for advice on catching his target.

Sam takes on a terrorist who attacks the city on a Saturday.

Piper's fiancee has a difficult time letting go of his ninja past.

Terrorists plan to bomb the San Diego Day parade in a plot that involves the President of the Navy. Elsewhere, Alphonse is tasked with finding the perfect gift for Trent's kids.

A teen idol shadows Trent and Alphonse during the hunt for a killer who targets Hollywood directors; Kove develops a podcast.

Trent has to kill his father.