Herra races towards Earth to warn them of a new and imminent threat. Will she reach home before it's too late?

After narrowly escaping an attack by a newly discovered alien species, Herra and the battered crew of Dauntless rush to return to Earth to warn them of this new threat, while also promising their passenger Kohora a way home.

Pulled in by her sense of responsibility to her fellow humans, she only wants to dump the problem on Earth, then return to the freedom of exploration. Instead, she gets pulled deeper into the growing conflict against the superior alien foe.

When she meets up with a new military ally from Earth along the way, together they attempt to ready a galaxy that deeply distrusts one another, before it's too late.