A new villain named Mr. Unpredictable calls out the Mobile Unit to try and solve his pattern, which he claims is actually not a pattern at all! Opal can't believe a villain can work without a pattern, but when the team keeps being blindsided, she starts to question herself. Meanwhile, the others take a tour of Villain University to see if they can gather any information about one of its alumni, who just happens to be Mr. Unpredictable.

When the tube system is shut down due to a scrambler installed by a villain, the Mobile Unit van becomes a taxi service for other Odd Squad agents. Once they realize their service will be rated on a scale up to 10 stars, Omar and Opal dedicate themselves to giving the coolest van experience. Meanwhile, Orla rides the tubes for the first time as she and Oswald attempt to figure out where the wires are getting crossed.