In a suburban neighborhood, two rival garden gnome clans, the Reds and the Blues, are embroiled in an age-old feud. The Reds are led by Lady Redbrick, and the Blues are headed by Lord Blueberry. Amidst their ongoing conflict, Gnomeo, a brave and adventurous Blue, and Juliet, a spirited and determined Red, accidentally meet and fall in love. Unaware of each other's affiliations at first, their bond deepens as they navigate various obstacles and misadventures. Their secret relationship brings moments of joy and daring escapades, but it also intensifies the animosity between their families once their connection is revealed.

As tension escalates, Gnomeo and Juliet face immense pressure from their respective clans, who disapprove of their union and continue to undermine each other at every opportunity. With both sides seemingly irreconcilable, the young couple is confronted with difficult choices that test their loyalty, courage, and love. Along the way, they encounter quirky allies and formidable foes, each contributing to the couple's quest for harmony amidst the discord. The escalating conflict between the Reds and Blues threatens to shatter their world, pushing Gnomeo and Juliet to take drastic measures in a bid to end the feud and carve out a future together.