A 9-year-old boy moves to a lakeside village and befriends a captain who claims a mythical sea creature named Nessie lives in their peaceful waters

A crazy scientist is in search of a sea monster, in this family comedy featuring mermaids, pirate treasure, sea monsters, and more. In a shared universe with Jim Wynorski's 2017 family film Nessie & Me, due to several actors reprising their roles.