A team of elite cavers led by 68-year old Bill Stone attempts a months-long expedition to officially make Cheve Cave in Oaxaca, Mexico the world’s deepest cave. A massive logistical undertaking above ground supports the lead team in the depths as they navigate an underground maze of twisting tunnels and dead ends in search of a passage that leads to the bottom of deepest cave on earth.
洞穴探险可以称之为最危险的户外运动了吧，有些片段看得自己鸡皮疙瘩都起来的，仿佛是自己置身于2公里的岩石底下。
非常朴实的纪录片，五星给用生命和时间去追求的人
非常精彩的记录，无人抵达之境。
幽闭恐惧症在几个点位完全没法活着出来，太恐怖了。
在连续9年申请成为NASA的宇航员未果后，男主把目光转向了深地，68岁时，他仍旧在切维洞穴待解的前路中探索。
