The 2375 engagement in which the Enterprise-E, under Riker, fought off two Son'a ships in the Briar Patch while trying to reach open space and alert the Federation Council.
The battle takes place in Star Trek: Insurrection. With Picard on the Ba'ku planet, Riker takes the Enterprise-E out of the Briar Patch to report the plan to remove the Ba'ku. Ru'afo sends two Son'a warships after her, with Admiral Dougherty's reluctant consent.
The Son'a use an isolytic subspace weapon, outlawed by the Second Khitomer Accords, which opens a tear that pursues the ship's warp core. La Forge ejects the core and detonates it to seal the rift.
Left without warp power, Riker takes manual control with a joystick and has the ship scoop up the volatile metreon gas of the region and vent it at the pursuers. When the Son'a fire, the gas ignites, destroying one ship and crippling the other. The Enterprise goes on to make contact with the Council.