After Kaiju ravage Australia, two siblings pilot a Jaeger to search for their parents, encountering new creatures, seedy characters and chance allies.
When Boy falls under the spell of the Sisters and transforms into a Kaiju bent on destroying the Atlas Destroyer, a surprising ally comes to its aid.
While responding to a distress signal, Taylor and Hayley find their parents' abandoned Jaeger and confront the Kaiju that attacked their village.
The mystery behind Boy's past deepens when Taylor and Hayley find him among dead Kaiju and destroyed Jaegers - along with the creature responsible.
With creatures close behind, Hayley, Taylor, Mei and Boy race to the safety of Sydney Base, but the Sisters call upon a Category VI Kaiju to stop them.
After successfully catching up with the Atlas Destroyer, Shane offers Hayley and Taylor a trade: the Jaeger for something they desperately want.
As Hayley and Taylor's mother tries to resist the High Priestess, the group plots to rescue Boy before his mind is permanently turned against them.
To take back Atlas Destroyer and save Hayley and Boy, Taylor attempts a risky maneuverer known as "ghost piloting." Joel and Mei make a deadly choice.
With Boy gravely injured, Hayley, Taylor and Mei pilot the Jaeger toward a valley full of Kaiju, where a supposed Kaiju whisperer might be able to help.
When a Kaiju fast approaches, Shane forces Taylor to copilot Atlas Destroyer with Mei to get it out of harm's way, but Taylor wants to fight.
The Atlas Destroyer gets chased into the territory of the Sisters of the Kaiju, where Hayley, Taylor and Mei argue about what should be done with Boy.
While on foot, Taylor, Hayley and Boy encounter a mobile settlement that traffics in Kaiju body parts. Its shady leader seeks to uncover their secret.
Boy's transformation into a Kaiju alarms Taylor and Mei, but Hayley wants to keep caring for him. A group of mysterious women attempts to kidnap Boy.