Mountain athlete Jason Schlarb and ultrarunner Meredith Edwards travel to Yunnan, China, with an ambitious plan to run a 55K trail race and establish the Fastest Known Time on 17,703-foot Haba “Snow” Mountain.

A dramatic ultramarathon racing culture is only rivaled by life on the frontier, where the pair experience a few nights on a rural farm before ascending a Himalayan-scale peak. Adventure runs high and success is elusive to the end.

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