First Picture of Zac Efron on ENTOURAGE August 29, 2009 Entourage Zach Efron on Entourage Here is a first picture of Zac Efron on ENTOURAGE. The episode is titled “Security Briefs” (Season 6 Episode 8) and will air Sunday September 13 at 10:30 pm EST on HBO. The synopsis of the episode goes as follows: “The boys worry about security at the house. Adam Davies’ revenge for Ari stealing Zac Efron as a client involves Lloyd. Drama turns into a private eye to find Vince’s new stalker. Ashley demands a more honest relationship with Eric.” Acccording to Just Jared, Zac shot two scenes back in June: one at Niketown in Beverly Hills and another at the Grand Trianon meeting room at the Beverly Wilshire in Los Angeles. Read all our Entourage coverage here. (Photo: claudette barius/HBO) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)