Derrick helps a Flemish Giant rabbit named Diego who has a front limb deformity.  Later, he revisits Chicago, Illinois to meet a 10-year old dog named Birdie, who has never walked with four legs.  Derrick is challenged with building a full limb prosthesis that Birdie will accept and use to prevent further injury to her front leg.

Derrick races to finish building 13 unique devices in three days at his pop-up workshop in LA, leading to the single biggest night of his career at The Frida Project fundraiser where each dog he helped walks down the red carpet.