Passengers on an immigrant ship traveling to the new continent get caught in a mysterious riddle when they find a second vessel adrift on the open sea.

The captain experiences inexplicable glimpses of the past. A strange man follows Maura to her cabin where a boy is hiding. An insect 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.

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

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

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.

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