Ace and Cosmo are enjoying the circus when a ceiling prop goes away, ruining the ringmaster's life. Ace goes to rescue Ace's old freind, Yokiko. The next, Ace,Yokiko, and Cosmo learned about the sabotaged equipment and implement a plan to expose the sabotager to save the circus from being closed. Only moments after the Magic Express arrives at the circus, someone taunts the elephants with mice and opens the cage causing a stampede. Yokiko and Ace rounded up the elephants in the streets of Electro City with no one getting hurt. Using a special dust on the cage door, Ace notices a large set of fingerprints which seems to belong to the strongman of the circus, Igor Strongor. Ace confronts him, but Strongor knoked himself out when he runs into a wall. Then, Ace and Cosmo overhears a conversation between Yokiko and Black Jack's lawyer, Mr. Clockwise who wants Yokiko to sell the property of the circus to let Black Jack build a new casino. When Clockwise gets Spade and Diamond to finish her,
