When an embarrassing video of him goes viral, Greg Heffley (Jason Drucker) hopes that attending an upcoming video game convention will help him get over his crushing humiliation. A planned visit to his great-grandmother's house will bring Greg close to the con's location, but his mom's (Alicia Silverstone) insistence that the trip is for family time might foil his plan. Tom Everett Scott, Charlie Wright co-star in this fun family comedy, based on the ninth book in Jeff Kinney's series.