Professional climbers Alex Honnold and Cedar Wright embark on a 30-day cycling adventure through the desert southwest to climb 45 of the most difficult sandstone towers the world has to offer. The two-man team will cycle 800 miles and ascend over 12,000 vertical feet, challenging themselves on each tower's most difficult route. Climbing up to 5.13b, these two athletes will push themselves to the brink of exhaustion, enduring high winds and desert sandstorms to achieve a goal that would take, the most hard-core desert climber, a lifetime to achieve.