Back to Mako Island

Get ready for a thrilling collision of worlds!

Following the wild adventures in Hill Valley, Doc Brown and his family are enjoying a well-deserved rest. But their peace is shattered when a familiar face from the past resurfaces - Dr. Linda Denman, a disgraced marine biologist with a grudge against mermaids.

Meanwhile, on Mako Island, Cleo, Emma, and Rikki are still adjusting to life as mermaids. However, a new threat emerges - Charlotte, a vengeful mermaid, seeks to rewrite history and secure her own mermaid powers forever.

Unbeknownst to them, Denman and Charlotte have formed a dangerous alliance. Traveling through time, they aim to manipulate the past, jeopardizing the very existence of mermaids and the delicate balance between the human and mermaid worlds.

Join Doc Brown, Marty McFly, Jennifer Parker, and the H2O girls as they team up for an epic adventure across time. They must race against the clock to stop Denman and Charlotte, ensuring the future of mermaids and rewriting history before it's too late.

This action-packed, time-traveling adventure is a must-read for fans of Back to the Future and H2O: Just Add Water!

Back to the Future is a copyright of NBC Universal & H2O Just Add Water is a copyright of Jonathan M. Shiff Productions.