Alta Mar revolves around the sisters Eva (Ivana Baquero, The Shannara Chronicles) and Carolina (Alejandra Onieva, Sotto Copertura) Villanueva. During their boat trip, various passengers mysteriously die. In the third season, the sisters head on a new journey, where they once again face a new mystery. A scientist wants to kill the passengers with a virus. Supposedly, this story is continued on into the fourth season. Season three and four will have eight episodes each, which should combine into a storyline that lasts for sixteen episodes.
