El Captain, a vertical rock formation in Yosemite Valley, has fascinated potential rock climbers since the sport started gaining traction. Rock climber Warren Harding made history in 1958 when he, along with Wayne Merry and George Whitmore, ascended the cliff over the course of forty-seven days. They accomplished this by employing fixed manila ropes. Though they would occasionally break due to the cold temperature, they persevered and made history. Over the next decades, more climbers would conquer this cliff. Royal Ribbons was the first to ascend the mountainside solo while Beverly Johnson would be the first woman to accomplish the task. In the year 2017, a climber named Alex Honnold seeks to accomplish something nigh-unthinkable – to complete the first free solo climb of El Captian. That is to say, he is to ascend 3,000 feet (915 meters) of granite alone and without the use of ropes, harnesses, or any kind protective equipment. Knowing the consequences, he gathers a crew determined to capture this piece of history on film.