Summertide tells the story of marine biologist and father of two children, Martin Field, who moves to the False Bay area to get away from a big secret - the death of his wife. There he starts a marine conservation trust for False Bay - but life isn't as simple as it seems.
Katarina, a Norwegian nurse in London, embarks on a passionate affair with a fellow immigrant nurse that suffers the consequences of unresolved mental health issues from the lovers' secret pasts.