ABC World News Tonight With David Muir

When it's suspected that her big pharma client's vaccine has caused a mysterious illness affecting a handful of teenage girls, high powered attorney Joanna Hanley returns to her hometown of Millwood to quickly and quietly settle the case.

In a town that’s as foreign as it is familiar, Joanna contends with questions over her family’s hasty departure when she was a teenager, while attempting to convince the locals that she has in fact switched sides.

Relying on her esteemed reputation as a partner at CTS, Joanna convinces a hydrologist to come to Millwood to test the soil.

Convinced that the steel mill and its owner, Ben Matheson, are hiding something, Joanna and Billy confront Ben.

When the sick girls decide to challenge their prime suspect in court, the employees of the industrial site worry that their jobs are on the line.

Joanna and Billy continue building their case against the industrial site.

Stuck in Millwood without a case and no longer having a firm to return home to, Joanna is at loose ends on what to do next. While she toys with the idea of taking an offer at another firm, Billy works to get their case reinstated without much success.

Pursuing a new lead, Joanna and Billy make a horrific discovery that strengthens their proof against the industrial site.

When an obstacle forces Joanna to take a step back on the case, Joanna and Billy must think outside the box if they want to win.

Using the law to her advantage, Joanna finds herself back in the game and decides to play her trump card.