Two archaeologists journey to a stunning canyon to decipher ancient symbols on its walls. The markings reveal a disturbing connection to the construction of the Chicoasén dam on the Grijalva river.
Their research uncovers a horrifying truth: the deaths of workers during the dam's construction were not accidents, but sacrifices meant to ensure its completion. Now, the archaeologists must race against time to stop a potentially devastating flood that threatens nearby communities. They must solve the ancient civilization’s riddles to prevent disaster.