The Cat and the Mouse - With temperatures falling rapidly, the Estrella Polar finds herself in treacherous waters and the crew must act quickly and precisely or risk losing the ship. Matters worsen when the crew realize that they are being followed. Roberto works to reconstruct a mysterious folder of documents that belonged to him before his accident. Flashbacks reveal a significant time in Julián's past while the landing party continues to uncover even more surprises.
—FourByFour