The survivalists arrive in Canada and spend their first night alone in the wilderness; as they attempt to build a shelter, their families watch from afar.

From killer hurricanes and tsunamis to earthquakes, floods and fires, these are the deadliest natural disasters ever recorded.

One spark is all it takes. From the Hindenburg disaster to Krakatoa’s violent volcanic eruption in 1883, these explosions are among history’s deadliest.

At an Irish wedding in Tenerife, Father Vincent arrives to officiate it, unaware that his life is about to unravel.

As Cormac deals with a recent trauma, he develops a secret affair with one of the other wedding guests.

As Stockholm spirals into chaos, Saga turns to military intervention when her curfew proves ineffective. Johannes launches his plan while Linda draws on her knowledge of apocalyptic films to survive. With Moa’s condition reaching critical levels, Elin defies protocols to secure help from the government. Meanwhile, Christian finally reaches his breaking point.