In "Something Good," the Postables track down a wildly talented but anonymous singer/songwriter using only the lyrics of his undiscovered song, taking on an investigation like no other. As the team follows the song's clues, they quickly unravel the details of a fated night, where two lives were changed. Meanwhile, an old friend of Shane's (guest star Valerie Bertinelli) arrives and stirs things up in the DLO.

Oliver and Shane investigate an unusual case that leads them to a bank vault. As Rita prepares for the statewide Miss Special Delivery competition with Norman?s guidance, Oliver and Shane discover they're locked in the vault without enough air to survive. There, they unearth a timeless treasure that will change lives if they don't lose their own.