Álex is a teenager who has a secret nobody can find out about; not even her best friend.
Iris joins her friend Cárol in her "rebellious phase".
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The new bathers, together with a spectacular bathtub, will arrive in Mar del Plata with funny gags on the beach, ingenious inventions, innovative traps and imitations, and with the help of the marine animals from the Aquarium, they will face an evil businessman, in a spectacular and fun ending.
