For Vega and her pod of orca whales, salmon is life. Vega is learning how to be a salmon finder, but when she and her brother, Deneb, are separated from the rest of their pod by an earthquake and tsunami, Vega has to use all of her skills to lead them back to their family. The two young orcas have to face a seascape changed by the tsunami, a shark attack, hunger, the deep ocean, and polluted waters in order to make it home.