Olive and Otto face their biggest challenge yet. Otto makes a deal with the dark side, to try and get Olive back as a partner. Helping Odd Todd make a mess of headquarters, they unlock doors with secret codes made from patterns from shapes, colours and numbers. But has Otto gone too far?

The Odd Squad show aims at problem solving and thinking and includes building procedural fluency as well as building conceptual understanding. The show uses creativity and imagination to foster inquiry and math-talk.