The Seventh Tributary

When a field research team disappears along an unmapped river deep in

the South American rainforest, cartographer Nadia Serrano joins a

dangerous rescue expedition. Conflicting maps, rising water, and a

hidden tributary lead the searchers into remote limestone gorges,

where their efforts to save three missing people reveal a threat to

the communities downstream. To bring everyone home, Nadia must

confront a mistake from her past and learn to trust those who know the

river best.