A story of friendship and courage in 1909 Montana.

Nine-year-old Clara is worried about the lonely summer ahead of her. That's when she meets Josiah, a boy full of ideas and imagination. Soon they're writing a book together, traveling all over town and countryside to collect stories.

But as their adventure unfolds, Clara begins to learn how much gumption it takes to fight for an idea - and how much courage it takes to fight for a friend. Together, Josiah and Clara create a summer like never before.