As Sherlock investigates an explosion that killed two people, he uncovers a crime that has been dormant for years; Watson wants Sherlock to choose a sponsor.
Finch infiltrates a tech corporation to gather intel on an executive whose number has come up; Carter questions Beecher's integrity.
When a journalist disappears while working on an exposé about an innocent man serving time for murder, Danny and Baez hope that re-examining the original case will help them find her.
Reverend Jamison is struggling with people referring to the departed as heroes. He is faced with death threats and a diminishing attendance at his sermons and then finds out he may lose his church due to foreclosure.
After learning his father has escaped the psychiatric hospital, Kevin orders an APB to track him down. Jill attempts to break an endurance record. Holed up in Indiana, a disillusioned Tom makes an unsettling discovery.