Several recovering Hodgkin's patient's bones are suddenly breaking into multiples fractures. Cassian and Taft investigate the gruesome deaths. Hailey becomes involed with a famous singer who faces the same fate.

Several people across the US are found dead or in a coma. The only connection is Metabathin, a diet pill. While Taft's investigation can find nothing wrong with Metabathin, Cassian's team uncovers a stock manipulation scheme when someone from the company leaks information that causes the public to panic.

When a boy collapses at an amusement park with burns in his mouth and throat, chemical weapons are suspected. The team suspects a government installation has a hazardous chemical leak.