'Once Upon a Time' Drops First Two Scenes From Season 7 Premiere at Comic-Con -- Watch

Once Upon a Time faced its latest test at Comic-Con panel on Saturday, when it presented its "rebooted" season seven for the fans in San Diego -- the first without several of its departed original series regulars. But things got off to a rocky start when a vocal fan yelled out at the top of the panel, "Why?!," likely referencing the cast shakeup, which saw the exits of Jennifer Morrison, Ginnifer Goodwin, Josh Dallas and Emilie de Ravin.