FACT: There's a real-life parasite that rewires mammal brains for extreme aggressive behavior. Over half of all the world's mammals are already infected, but aren't symptomatic because the parasite remains dormant in most hosts. Like a ticking bomb, this puppet master is patiently waiting for the right time to set off its hosts against the world. That time is now! A canceled flight due to a volcanic eruption and a violent animal attack at their port almost cause Ted and TJ to miss their transatlantic cruise and a needed escape from their busy lives in the US. But there will be no peace or tranquility on this cruise as something is very wrong: animals have started to attack for no apparent reason. It will take Ted and TJ's unique skills to not only survive their cruise, but to understand an apocalypse of madness which appears to have struck the whole world. With mammals outnumbering humans 10,000 to 1, is this the end?