The Earth has developed a defense system against large meteorites that are on a collision course with it. This protection system is made up of the Comet Blasters based in several space stations as the 1st line of defense, using nuclear warheads launched by spaceships. The 2nd line of defense consists of the Meteor Sweepers launching from ground airbases using hypersonic planes with special missiles to deal with the resulting debris from the blasts. Mikaze is a troubled girl that is a trainee pilot for a Meteor Sweeper team that dreams of becoming a prestigious Comet Blaster pilot. Stratos 4 revolves around Mikaze's and her teammates' challenges to become real pilots, while the Earth faces the threats that come from space.
Stratos 4 is a fun Sci-Fi series focusing mainly on Honjo Mikaze’s struggle to first find her way and then with the other members of her Meteor Sweeper team, realize their dreams. Throughout the anime, humor abounds as well as drama, government conspiracies and plenty of fan service. Attention to technical details is top-notch. A majority of the aircraft and spacecraft are not out of this world, brand new hardware but are retrofitted cold-war era American and Soviet designs. This quite closely mirrors what may actually happen in reality, where we faced with the same situation. That being said, Stratos 4 is neither deep
nor hard to understand, it’s there for the fun with a good helping of some light drama and some of the best art direction and animation I’ve seen in a TV series.