When an odd sensitivity to light affects her eyes, Allison must don a pair of sunglasses. But the shades bring into view mysterious numbers that might allow her to predict people's life expectancies. Allison also has visions of Joe's dad (Bruce Gray).

A diamond exchange is robbed and the thieves take hostages. Don believes the crooks are copying the criminal strategies of a convict he put away for a deadly hijacking scheme, so he turns to the prisoner for help with the case.