An intruder attacks Sanctuary 573, forcing Eva above ground. Alone, she relies on her survival skills and a cryptic note labeled "WondLa."

Determined to find other humans, Eva enlists Rovender's help—but getting her first real lead comes at a high price.

Eva visits a sage and learns a grim fact about humans. Undeterred, she doubles down on her quest as Besteel the bounty hunter closes in.

Despite Muthr's protests, Eva follows through on a daring plan and forms a friendship with an unlikely ally.

With a possible human civilization finally in sight, Eva and her friends face their most dangerous mission yet.

Eva learns the truth about humankind as Besteel tracks her down for a cataclysmic face-off.