It all begins with Frisk, an 21 year-old girl with a dark past; a thief who gambles it all for the greater good. In a sketchy old bar she meets the infamous G, a crazy no-good skeleton who turns her life into hell. But when they are thrown into prison, they start to notice the growing blue sprouts called echoflowers, around the prison and past the gates, it was only the beginning of something dangerously strange in the future. Escaping the prison they were locked up in, Frisk and G move town to town as fugitives; attempting to uncover the mystery of the echoflowers as they grow larger and larger, Lives are at stake and humans and monsters are are on the brink of death. Will determination be enough to save everyone? What will happen when someone interferes with lives of others? Will G and Frisk be able to stop the growth of the echoflowers before it's too late?