The captain experiences unexplainable flashbacks. A strange man follows Maura to her cabin where a boy is hiding. A bug leads to a tragedy on deck.

A girl and other passengers suffer a terrible fate. Olek frees Ling Yi from a box. The captain makes a discovery that challenges his trust in Maura.

Maura tells the passengers an unbelievable truth. Then, their memories shift and Daniel changes a code. Maura faces an unexpected reality.

Tove has scary flashbacks and wants to kill the boy. Daniel follows Maura and the captain into a strange place. Maura's father appears with a message.

Maura helps a pregnant woman. The captain makes a brave decision after receiving a message from a lost ship — and discovers something mind-bending.

Several crew members and passengers search the ship for the boy after locking up the captain, Olek, Jérôme and Ramiro. Krester's secret is revealed.

Daniel asks Maura for something she doesn't understand. Olek and Ling Yi steer the ship before a tragedy occurs. Elliot's identity comes to light.

Maura has terrible flashbacks and makes a shocking move. A sound leads some passengers to jump overboard. Maura makes a discovery about her father.