This is episode 44 of 58 of Tempest:The Last Mecha. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
Broken by his parents' deaths, Colt Thorne, the Mech King, hides as a lowly janitor after being saved by Freya. But when Freya, the woman he secretly loves, is betrayed and forced into a lethal mech duel, Colt must unleash his hidden identity. Unlocking his legendary 100% Neural Sync, he commands The Tempest to crush his enemies and save the world from an extinction-level alien swarm!