Things take a turn to the catastrophic when Fire gets ahold of Professor Eugenius’ latest work-in-progress, tiny energy bracelets that will allow Fixies to travel through electrical wires. Under the influence of the untested bracelets, Fire grows out of control and becomes a weapon of mass technological mischief and destruction. The Fixies must work together to stop Fire from destroying the whole city and revealing the Fixies’ secret existence to the world!