Peggy struggles when she begins seeing the ghost of a patient who recently committed suicide, jeopardizing her career in the process. Meanwhile, Declan also finds his employment at risk when his pursuit of miraculous phenomena interferes with his classroom responsibilities.

Declan uncovers a cloth in a 17th century tomb that they discover is the veil of Veronica, a religious relic with the power to heal. It is used to heal Cancer patients but soon starts to disintegrate. While looking for a method of preservation, the veil is sealed until Miranda is struck with a deadly virus and Declan is forced to make the decision whether to save his friend or save the veil for the good of mankind.