Romance book blogger Vivian Galdi is a girl on a mission: the Replacement Crush Mission. After Jake the Snake pretends their secret summer kissing sessions never happened, Vivian creates a list of safe crush targets, determined to avoid anyone who pings her zing meter. But nerd-hot Dallas, the new guy in town, sends the mission and Vivian's zing meter into chaos. While designing software for the bookstore where Vivian works, Dallas wages a counter mission, analysing his target and taking advantage of the tactical errors in her strategy. Does Dallas just like a good game of Replacement Crush Battlefield, or is he on his own mission to prove to Vivian that true love can't be strategized? And how much collateral damage can they both sustain during the heat of battle?