Set on the beautiful Irish island of Puffin Rock, a young puffin called Oona undertakes a challenging mission to protect the home she loves and ensure the survival of her community.

Many new puffins have arrived, seeking shelter and hoping to build new lives on Puffin Rock. A young Horned Puffin family bring a Little Egg but it suddenly disappears under mysterious circumstances. With a big storm approaching, Oona & her friends race against time to find the egg and brace for the storm.

Can they save the egg, the puffin colony and, ultimately, the entire island from disaster?