When a drought tests the commitment of a mail-order bride from Maine to her new home on the prairie, her stepchildren hope they will be able to remain a family.

Lark Ainsley has longed to have her magical energy harvested and become an adult, but when she learns she is expected to become the city's power supply, she escapes in search of a wilderness rumored to be inhabited by others like her.

Sarah and Jacob are forging a life together in the Kansas prairie when drought ravages the land.