Islanders are going to sell 4 horseshoe crabs that have a very precious blood, but a girl named Shafa decides to save the animals from death.

Fishermen catch a few horseshoe crabs and bring them to their island. To save the crabs from death, a girl named Shafa steals them at night and helps them flee. But this makes her family the target of people's anger. The islanders are going to expel them, and now Shafa must choose between the welfare of her family or the lives of the crabs.