Mikkee the Martian and the twins meet up the next day, after their first exciting adventure. Mrs. Watson has arranged for the trio to visit the local fair. Billy is cheated on a sideshow, but Mikkee turns the tables with the stall holder. Jilly tries hard at winning a prize. After enjoying the rides, the three discover an escaped tiger has led to panic in the fairground and a couple have been stranded on a ride. Mikkee effects a rescue. Mikkee, with the twin's help, captures the tiger and brings it safely back to its cage.