Twelve-year-old Mackenzie "Mac" Lowell's dreams have come true. Thanks to her mom scoring the coolest job EVER, Mac is going from boy band fanatic to official tour member of her favorite group, Perfect Storm. Good thing she's brought along her journal so she can record every moment, every breath, and every one of lead singer Zander Welling's killer smiles in written detail and daydreamy doodles.