Plot: Tonight's couples test will be decisive before the most painful elimination: one couple will leave just before the final week. For the challenge called "The Wasters", the contestants have to fill water with the most unexpected objects, from perforated pots to suitcases, thus filling several buckets that they lift onto the rocky plateau where a kind of aqueduct awaits them that needs to be rebuilt - and with his help to pour the water into a graduated aquarium