Four years after her legendary clash with the Eagle and the Jackers, the young Queen Juliana just wants to rule her country in peace. But when a series of events brings back an old enemy with a new ally, the UN urges Project PROB to reassemble and face the threat. Teaming up with the American ice-wielding superhero Astrid Bennett, AKA Winterbird, the old team is thrown back together with a twist.

As the fight goes on, Chase and Juliana only find themselves sinking deeper into the mess their foes have created. Soon, they realize they may not be able to hold off a constantly evolving threat. After all, what use is a probability-wielding superhero when numbers fail?