Five primordial aliens have been unleashed from the darkest corner of the galaxy - and they're out to destroy the universe. nly Cosmo, a young boy from planet Earth, has the power to stop them. Recruited by the elite defence organisation G-Watch to defend the galaxy, Cosmo must prove himself and commence battle against the deadliest aliens in space... iscover the next instalment in Cosmo's galactic adventure, that sees the young Earthling face the terrifying alien Arachnia. highly-commercial series for younger readers, featuring bonus collector cards that allow the reader to do battle alongside the Alien Invaders characters!