Watch Stratos 4 Advance Online

After successfully returning to Earth on the renovated Stratos 4, the four main characters are visited by the Comet Blasters Chizuru Kubo and Annette Kerry, who bring them a shocking video. Meanwhile, Orbital Station 7 is in serious trouble... This two-episode OVA comes between the first and second seasons.

A crisis is approaching, and meanwhile, the higher-ups are plotting behind everybody's backs. Plans of a massive comet interception mission involving both Comet Blasters and Meteor Sweepers' MiG-31MS and TSR-2MS are being prepared. But will the plan succeed? Is it tears of sorrow or laughter and joy that await the team of four beauties from Shimojijima Base?

The plot continues and while three new recruits come to the base for training, the whole team comes back to join the fun and defend the planet from outside or maybe inside enemies.