Years after the Battle of Medora, the Core Four decide that it's time to take a proper vacation. But just like all their other holidays, it turns into something much more sinister and deadly, with the risk of tearing the Core Four apart for good.

Alex thought she was going to have a normal combat lesson, but within the first ten minutes, she was proven wrong. When Karter told the class that they were going on a feild trip for their assessment, Alex didn't believe it. Why would grouchy harsh Karter ever take them anywhere outside the arena, let alone outside the school grounds? But Karter was telling the truth, Alex realised as he smashed open a bubble door and pushed them through. Now, Alex and the combat boys must overcome a number of combat related tasks to get back to the Academy with only their minds and the cloths on their backs. Expect some Kailex!