As Secret Empire begins, Captain Marvel faces the Chitauri! The savage alien fleet has nearly reached Earth space - and it's up to Carol Danvers to stop it. But taking on an entire armada is a tall order even for our mighty hero and the crew of the Alpha Flight Space Station. Can Carol find a way to inspire her ranks - including her battalion of young cadets - to rise to the challenge of protecting the planet? As Alpha Flight puts their plan into action, an enemy from Carol's past rears its head, threatening to ruin everything! COLLECTING: THE MIGHTY CAPTAIN MARVEL 5-9