"On her first assignment, Lucy and her team witness the destruction caused as two foes collide. Plus, the mysterious alien alliance unleashes a new set of monsters, bent on the annihilation of our world."
SPOILER WARNING: This section may contain major plot and/or ending details. Proceed at your own discretion.
In the Huanren Reservoir in China, Lucy and her team try escaping from Varan as the Chinese military try to hold him off, but Varan is unaffected and continues chasing them down. Jeremy pushes Kristina aside to run in front, and Lucy attempts to get her back up. When it looks like Varan is about to crush them, a strong gust of wind arrives as Rodan kicks Varan into a mountain. Lucy and Kristina catch up with a rescue team truck and drive away as Rodan and Varan engage in battle. Varan tries choking Rodan and Rodan retaliates with winds from his wings and tackling Varan with his feet until jet missiles hit both monsters, forcing them to flee. As Lucy and her team are rushed into an underground mountain base, she observes that Varan can glide.
When inside, something caused Lucy to go plummeting down some stairs and fall unconscious. When she woke up, she entered a door and found a giant green monster in containment, questioning what it was. Chinese soldiers then find her, as a commander with a scar on his face comes in, tells her it's Gaira, and they escort her to her team. Along the way, the commander explains that Gaira is dangerous and due to that he is in captivity. When they arrive, Lucy almost immediately tells Professor Ando, who snaps at the commander, whom in turn punches Ando and walks away. Ando asks why did they trap Gaira, and the commander describes the distress calls they heard. They captured Gaira and put him in a chamber flooded with water in hopes of making him docile. The commander leaves just as Varan's head is smacked into the ground by Rodan, exposing the inside of the base and causing the whole thing to crumble. Ando tells Lucy's team that they have to escape, but Lucy decides to go free Gaira instead. Once Gaira is freed, she goes up to the surface and gets on the truck with her team, heading toward the airport. Just then, Gaira smacks Varan and they begin fighting. Varan bites Gaira but Gaira picks up Varan and throws him down. Varan, retreating, begins gliding away, but Gaira grabs his tail and they flew out to the China Sea, Sanda watching.
Later on, Lucy and the others are at the airport waiting for their flight. Lucy is sending text messages to her mother about the events that underwent in China. Right then, the Kaiju News Network on the television is broadcasting Godzilla, who's in Nevada and heading to Las Vegas.