S3·E8 Invasion! (II)

Episode recap

The episode opens with the arrival of the Dominators, an alien force that launches a coordinated assault on Central City. Their sudden incursion forces Team Flash to confront a threat far beyond the usual metahuman menaces. Recognizing the need for additional firepower, Barry Allen travels to Star City to seek the assistance of Oliver Queen, the Green Arrow. After a brief discussion, the two heroes conclude that the scale of the Dominator invasion exceeds what either team can handle alone, prompting them to broaden their search for allies.

Barry and Oliver locate the crew of the Waverider, the Legends of Tomorrow, and enlist their help in confronting the extraterrestrial menace. Meanwhile, back at S.T.A.R. Labs, Cisco Ramon works with Barry to construct a dimensional breach capable of summoning a powerful, previously unavailable asset. Their efforts succeed in bringing Supergirl into the fight, adding a formidable Kryptonian presence to the coalition of heroes.

With the assembled group of super‑friends—comprising the Flash, Green Arrow, the Legends, and Supergirl—a strategy is devised to strike back at the Dominators. As the plan takes shape, a startling revelation concerning the timeline alteration known as Flashpoint emerges, casting doubt on the motives and loyalties of several participants. The disclosure unsettles the team, leaving them uncertain about who can be trusted as the battle looms.

Parallel to the main conflict, a subplot follows Wally West, who expresses a strong desire to join the frontline against the alien invaders. Iris West, however, cautions him, asserting that he is not yet prepared for the dangers of the upcoming confrontation. Her admonition underscores the tension between Wally’s eagerness and the protective instincts of those close to him.

The episode concludes with the assembled heroes poised to engage the Dominators, their unity tested by the newly uncovered secret and lingering doubts about allegiance. The stage is set for the continuation of the crossover storyline, which will carry forward into the next installments of Arrow and Legends of Tomorrow.