Zoey and Lukas explore cryptology and secret ways of communicating as they channel their inner spies. Great spies need great mental and physical skills, so the challenge has teams of kids run through an obstacle course with puzzles to solve before each obstacle. In the game show, kids answer spy-related questions and match the letters of their answers to the numbers on a cipher wheel. A computer programmer comes by and shows how he uses codes in his job. He has Zoey and Lukas decipher some pixel art code by using coloured post-its to follow a pattern and make a picture.  Real kids tell us their funny spy code names. When Lukas programs Booboo Bot to decipher a secret code language he made up, Booboo Bot loses his cool.