It follows Joseph "Joe" Gatto, James "Murr" Murray, Brian "Q" Quinn and Salvatore "Sal" Vulcano, the four members of the comedy troupe The Tenderloins as they coerce one another into doing public pranks while being filmed by hidden cameras. The show differs from other prank television programs in that the stars of Impractical Jokers do not know the details of the prank until the moment they are performing it on strangers. While one or two cast-member(s) performs the prank, the other comedians in the troupe are behind the scenes feeding lines to their friend(s) via microphone (with an earpiece).