When three children die of leukemia in a rural Mexican community, two mothers partner with a scientist to investigate their water supply. Their discovery of dangerous radioactivity leads to community backlash and government denial, revealing how deep aquifers harbor ancient nuclear traces from the last ice age.

When attorney Paul Farrell Jr. takes on pharmaceutical giants to help his opioid-ravaged West Virginia hometown, his innovative legal strategy catches fire. As his local battle transforms into the largest civil litigation in U.S. history, he must navigate increasingly high stakes to secure justice—not just for his community, but for an entire nation in crisis.