When lucas spots a mysterious rv outside, he's stunned to see his sister-back, but acting strangely distant. before he can ask what's going on, she disappears again, leaving behind more questions than answers. while the parents are called to an emergency school meeting, avery's uncle watches over lucas, avery, and derrick. the trio wastes no time diving into the next game on the beast. this one's called copycat-and just like the others, it's no ordinary game. the moment they hit "start," they're transported into a mind-twisting world where digital doppelgängers mimic their every move. lucas must stay balanced on fiery platforms, derrick learns to lean on his copycat's strengths, and avery faces a bizarre glitch-her copycat isn't copying at all. with each level more intense than the last, the team must outsmart their mirror versions, decode new game mechanics, and stay one step ahead. and when lucas glimpses a dragon high in the clouds, he begins to suspect there's more tying these games together than they ever imagined.