Joint Struggle
A Vic Viper squadron attacks a WORM with a self-recovery ability. Togo's backstory is also further explained.
Aired 23/11/2007EP 21 - Joint Struggle

2007
Sky Girls
In the near future, Earth is at war with aliens called Worms. The war leaves the population of Earth decimated, with young men the main casualties. The Worms were beaten back but their re-emergence heralds the creation of a mecha unit called the Sonic Divers, piloted by 3 young girls to counter this threat.