A regular Monday afternoon group project quickly turns into another thrilling adventure for Abigail and her friends. Mr. Caruthers has given them a brand new time-travel assignment, but this one is incredibly complicated. The third-graders must jump back in time to meet Sacagawea and convince her not to give up on her dreams. There is just one massive problem: the kids have absolutely no idea what Sacagawea's dream actually is. They know she is famous for helping explorers Lewis and Clark map the western frontier, but they need to uncover her personal goals before time runs out. The friends have just two hours to track down the teenage Native American guide, figure out what she truly wants to achieve, and give her the encouragement she needs to succeed. Join the crew on a challenging historical quest that requires sharp detective skills and a lot of heart.