In 1956 brothers Arturo and Gustavo Martinez made a bicycle trip from Mexico City to Toronto, in Canada. They were the first to accomplish this feat, and it changed their lives forever. 53 years later this two men, now 75 and 78, drive along the exact same route followed by a small film crew. The objective is simple: to see what has changed, both in the landscape and inside themselves. CICLO is an exploration of memory, the heart, and the unavoidable passage of time.