During a very boring school morning, Martina notices that her history book only starts with the arrival of Christopher Columbus, in 1502. Martina knows that nothing starts with the number one-thousand five hundred and two! It's obvious to her that something - or someone - was already in Panamá before then. But what?
Frustrated with the lack of answers, Martina decides to find out the real history of Panama by herself: by building a time machine! Scraped together from a fishing boat, parts from one of the iconic Diablo Rojo buses of Panama's recent past, and whatever else she could get her hands on, the time machine is her ticket to discovering what the history books do not say!
And the true history of the Isthmus of Panama is more fascinating than anything Martina could have ever imagined: ever-erupting volcanoes, long-extinct animals the size of cars, and human complex human societies.
But time travel is trickier than she thought. When the time machine's energy source unexpectedly shatters, Martina gets trapped in the past. She must now learn to navigate this ancient society in order to return to her own time. But as lives with her new friends, she discovers not just the true history of the original people that lived in Panama but learns some unexpected truths about her own family history - and herself.