Numb3rs Episode 4.16 Atomic No. 33

Members of a religious cult refuse medical assistance after being mass poisoned, drawing the attention of the FBI. After the cult's leader finally allows his followers to be treated, the FBI's investigation leads them to Susan Doran, wife of the former cult leader who also died of poisoning. The team believes Susan killed her husband and tried killing the Ezra with the mass poisoning.

After they take her into custody, Ezra is killed by a bomb, revealing that there maybe another suspect other than Susan. Further investigation shows that Ezra along with his alleged son were actually con men, trying to take control over the church for a big score. There plan was to poison the followers to get them to accept medical help, which would subsequently help them become accepted as a legitimate religion and save them a huge sum of money in taxes.