It's a race against the clock as Sam, Elle, and Gizmo battle fearsome yet adorable monsters on their way to the Valley of Jade as long as Greene and the Gremlins don't catch up with them first!

The friends celebrate their arrival at the Valley of Jade, but will Sam finally gain the confidence he desperately needs?

Devastated by failure, Sam and Elle must look inward to find the strength to protect Shanghai from being overrun with violent Gremlins.

With our heroes reunited, their bond is put to a final test as enemies from all sides converge.