If you're reading this, it may mean I'm in trouble. I am, Riley is...the whole world is in deep strife.

With their friend missing and people throughout history falling through holes in the continuum, 17yo Madison and Riley must travel to the future to get to the bottom of who's at the top of the shadowy time travel organisation known as Recall.

At the front of their mind is a question—how did Recall find out about time travel? Who told them? If they learn the answer, they'll need to undo that one moment, winding back the chain of events that led the world into an almighty mess. If they can't find that precise moment in time—the point of origin of all the trouble—and reverse it, the temporal walls separating one age from another might come down, leading to a terminal global event.

Time travel's like that, you see. Here one day, utterly erased the next.