Kay wakes up on a floundering yacht. The Tasmanian coastline has receded, and her partner, Sam, has mysteriously disappeared.

An eerie fog hinders visibility.

With no means of communication with the outside world, Kay's worst fears are realised: she is alone and isolated, her vessel off-course and lurching into the unknown.

From the bow of a sinking yacht to remote and craggy coastlines, Kay's journey is one of unexpected dangers and startling discoveries.

In an unforgiving environment, Kay has to dig deep and trust her instincts.

When life and death are on the table, the choices she makes will change her life irrevocably.

Set in fabulously wild and wildly fabulous places, Undertow is the thrilling tale of one woman's quest for survival in the Tasmanian wilderness.