A group of prisoners of war escapes from a camp in the midst of the American Civil War, using a hot air balloon. However, their plan for freedom turns into an unexpected adventure when they land on a mysterious island in the middle of the Pacific Ocean. At first, they seem to be in a tropical paradise, but soon they discover that the island harbors fantastic and dangerous secrets.
Among the island's new inhabitants, they encounter magnificent and terrifying creatures, such as a gigantic octopus and enormous prehistoric animals. The plot thickens when the fugitives cross paths with a mad scientist, who has been living on the island and has his own agenda. As they try to survive and find a way to escape, the prisoners face not only the challenges of the hostile environment but also the distrust and internal conflicts that arise from their situation.
With elements of science fiction and epic adventure, the group is forced to come together to overcome adversities while exploring the mysteries of the island, uncovering its incredible history. The team's dynamics are put to the test when they have to decide whether to continue together in their quest for freedom or to leave behind those who cannot keep up. This journey into the unknown will lead them to confront their deepest fears and find their true courage.