the only episode i know where 2 enterprise where together was in tng with yesterday enterprise, the enterprise C was damage when romulan warbird decloak and fire at the enterprise (the where responding to a klingon distres signal and a rift hase open sending the enterprise C 25 years into the future and enconter the enterprise D and changin reality of the enterprise D, but none of the enterprise have pulse phaser nore did the klingon bird of prey, so i don't knowwhat episode it was (if it was actual startrek stuff from any of the startrek series).