Ken is a middle-aged fisherman who has captained the Sea Mac for more years than he can count. He has experienced heavy weather, rough seas and even death. However, nothing has prepared him for what he is about to endure on the island of Eilean Boghdoiri. His friend Paul, also the island’s lighthouse keeper, has gone missing. Ken and his deckhand Jimmie set out in search of him, only to discover things are far more complicated than initially thought. As they race to unlock the mystery, Ken and Jimmie find themselves fighting to stay alive. Will Paul ever be found, and, if so, can they make it off the island in time? 

Jax has always succumbed to his boss’ wishes in an effort to please him. When he is asked to journey to the town of Tellare with a volcanic ash cloud standing in his way, Jax realizes the dangers, but he accepts the job anyway. He even brings along his friend Stu as company. However, Jax starts to regret his decision when Stu puts up resistance and conditions continue to worsen. What awaits them inside the ash cloud, and will Stu prove to be a liability when push comes to shove?