All Howl's Eve

All Howl's Eve is the twenty-second episode of the first season of the television series K.C. Undercover. It aired on October 4, 2015.

Synopsis
Ernie and Judy's mission to intercept an evil wolf serum at the Central Park Spooktacular goes a little off-track when they meet Emma Ross and Zuri Ross from Jessie. Back home, K.C. and Marisa throw a Halloween shindig of their own, with K.C. deciding to dress up as a spy in hopes of impressing River, the new boy in school but loses her expensive heart bracelet for communication with the Organization.

Trivia

 * This episode is a crossover with one of Disney Channel's live-action sitcoms - Jessie.