In an enchanted garden in London, Gnomeo and Juliet, the famous garden gnome couple, are enjoying their life together, surrounded by an idyllic setting. However, things soon take a sinister turn when their gnome friends start to mysteriously disappear. The seemingly perfect happiness is threatened, and the couple realizes that they need help to solve this mystery.
They decide to call one of the world's best detectives: Sherlock Gnomes, a clever gnome with immense skill in solving mysteries. With his arrival, a whirlwind of madness and fun unfolds, reminiscent of classic Sherlock Holmes tales. Alongside his trusty companion, Watson, and the two garden lovers, they embark on an exciting adventure through the streets of London.
As they investigate, they uncover an evil plot that threatens not only their friends but all the garden gnomes. With a combination of wit and cunning, Gnomeo, Juliet, Sherlock, and Watson must unravel clues and overcome obstacles to stop the villain once and for all.
With a nod to classic mystery tales, the film blends humor, action, and a heartfelt message about the value of friendship, as the characters strive to keep their families and communities united. In the end, love and loyalty triumph, leaving everyone with a smile and a newfound appreciation for gnomes.