Meet Marina Watson – she’s little, but no shrinking violet. She lives with her mum and step-dad, Rob. Life’s good, but there’s one thing she doesn’t get… Why she isn’t allowed to go in water?! For years, Marina’s mum has forbidden her daughter from having baths and swimming. She claims Marina has a terrible phobia of water, and will have an anxiety attack if she goes in it. But something doesn’t add up. Marina isn’t afraid: in fact, she’s never been more eager to dive into the deep end. One day, in a P.E. class, Marina finds herself doing just that - she accidentally falls into a swimming pool and transforms into a mermaid! Marina swims into the strange, exciting world of the ocean where she meets a whole range of interesting characters, and discovers some surprising truths along the way…

MerLissa lives in the beautiful village of Merillia. Not any ordinary city, one under the sea. She's a Messenger Mermaid and picks up worthy humans to show them her home and its inhabitants. Aside from that, she has her own problems just like any girl would: her only family left is her mother, she blames humans for her father'a absence, and she might just get mer-napped by her own evil kin. Join MerLissa in this fun filled adventure as she searches for the pieces of her life she never knew we're missing.