Fake it 'til you make it - that's what Dani's older sister always said.

Thirteen-year-old Dani never asked to be responsible for her younger sister on the school field trip to the Santa Cruz Mountains - but no one expected a massive earthquake to strand them far from help. Now with no cell service, dwindling supplies, and dangerous terrain, Dani, her sister Lily, and Dani's secret crush, Miles, must find a way off the mountain on their own.

But nature isn't the only threat. As they navigate the rugged wilderness, they cross paths with strangers who aren't who they claim to be - and a sinister plot begins to unfold. Trapped in a high-stakes con-game, the trio's only chance of escape is to work together.

That's easier said than done. Ever since their older sister's death, Dani and Lily have barely spoken, each silently blaming the other. Now, they must learn to trust each other again if Dani's daring plan has any chance of success.

If she fails, they might never make it home. But if she succeeds, Dani won't have to fake it 'til she makes it anymore - she will prove that she is becoming the person she wants to be.