Airdate: October 18, 2020
While escaping from the Lava Monster, Cole, Vania, Wu, and the Upply discover the Heart of the Mountain.
- Living Lava: The Lava Monster.
- Rock Monster: Lilly's mech resembles this.
- Rollercoaster Mine: Cole has everyone use this to flee the Lava Monster.
- Unusual User Interface: Lilly's mech is directed by elemental power, rather than the control panels Cole is used to.
