The Starship Enterprise will lend a hand to some new aliens called 'Triannons' in the currently-untitled twelfth episode of STAR TREK: ENTERPRISE, according to new information provided TrekWeb.

Presently known as "Untitled Sphere," suggesting the story has to do with the mysterious Expanse spheres encountered in "Anomaly" and again in "Exile," the episode will involve a slew of guest roles. When the Enterprise lends medical attention and repair work to a damaged Triannon vessel, the crew's act of kindness is returned with a takeover of the ship.

When leader 'D'Jamat' sets the Enterprise on a proprietary course, 'Captain Archer' sabotages the ship to bring it out of warp. 'Trip' tells D'Jamat that the EPS manifolds are the problem and he sends his engineer 'Nablis' and another man, 'Yarrick', to investigate. Archer intercepts and stuns Nablis and tries to appeal to Yarrick's better judgment in hopes of regaining control of the Enterprise.

The Triannons would seem to be spiritual people and at one early point argue over the virtue of technological progress in a dinner with the captain and 'T'Pol'. They also haven't achieved warp 5 capability yet, their ship hoping to manage warp 2 after Trip's repairs. Other guest roles include a female Triannon named 'Indava' and an associate named 'Jareb'.

This information is preliminary and subject to change. The story is © Paramount Pictures. The episode will likely air in early December or early next year.