Markham's autopsy results are inconclusive, and though it appears he's been poisoned, toxicology fails to corroborate Laurie's suspicions. While her coworkers doubt her assassination theory, her determination wins over her husband, fellow medical examiner Jack Stapleton, and together they discover associations to a large pharmaceutical company and several biomedical start-ups dealing with stem-cell research. Laurie and Jack race to connect the dots before they are consumed in a dangerous game of biotech espionage.