Greg Heffley tells about his summer vacation and his attempts to steer clear of trouble when he returns to middle school and tries to keep his older brother, Rodrick, from telling everyone about Greg's most humiliating experience of the summer.

As the day of the Valentine's Day dance approaches, Greg Heffley worries he will be left out until a twist of fate lands Greg with a date, but leaves his best friend, Rowley, on his own.

"Greg Heffley's on a losing streak. His best friend, Rowley Jefferson, has ditched him, and finding new friends in middle school is proving to be a tough task. To change his fortunes, Greg decides to take a leap of faith and turn his decisions over to chance. Will a roll of the dice turn things around, or is Greg's life destined to be just another hard-luck story?"--Provided by publisher.

A Valentine's Day dance at Greg's middle school has turned his world upside down until an unexpected twist gives Greg a partner for the dance and leaves his best friend Rowley the odd man out. Baile del día de San Valentín en la escuela intermedia de Greg ha convertido su mundo al revés hasta que un acontecimiento inesperado da Greg un socio para el baile y deja a su mejor amigo Rowley el tercero en discordia.

Greg records his sixth grade experiences in a middle school where he and his best friend, Rowley, undersized weaklings amid boys who need to shave twice daily, hope just to survive, but when Rowley grows more popular, Greg must take drastic measures to save their friendship.