Stella gets a big surprise when her mom plans a trip to visit their family in Mexico! Stella loves marine animals, and she can't wait to see the ocean for the first time, until she arrives and learns that the sea and its life forms are in danger due to pollution. Stella wants to save the ocean, but she knows she can't do it alone. It's going to take a lot of work and help from old and new friends to make a difference, but Stella Díaz never gives...

An oil spill spells trouble for Seaside Sanctuary and the birds and other marine animals that live along the beach, including a young pelican that Elsa and Olivia rescue; all the birds need to be carefully cleaned and given medical attention--but there is another problem: until the spill is cleaned up the birds cannot be released, and the company responsible for the spill does not seem interested in doing its part.

"Under the sea, a crab follows its heart and its calling, bringing everyone together in the wake of a disaster"--

Little Turtle loves her ocean home. Year after year, she travels to the beach where she was born, and along the way, she marvels at the wonderful sights around her. But during one journey, when she's older and bigger, Turtle notices that things look different in her ocean. Plastic bags and other pieces of garbage have been dropped into the water, and Turtle doesn't recognize her home anymore. Can anything - or anyone- save Turtle's beloved home?...

A whale takes a child on adventure across the ocean, and together they explore the wonders of the ocean world, but also the sad state of plastic pollution--and the child returns home to try and help the whale to save his marine home.