I bought the disc but can't locate any DLC for claptastic voyage. Is it not available on the ps4?
The downloadable content “Claptastic Voyage” is included with purchase of Borderlands: The Handsome Collection, but is not on the physical disc. It will need to be downloaded from PlayStation Network / Xbox LIVE. You will need to make sure you have the latest update for Borderlands: The Handsome Collection. - gearbox swoftware
Source : Post on Gearbox Software Zendesk