Tuesday night, "Glee" will premiere its Season 5 finale, but what lies ahead for show's sixth and final season?

On Monday, Darren Criss (Blaine Anderson) attended Fox's Upfront where he revealed the details about the impending "bomb" that is said to set up Season 6. Well, sort of.

"There's a nuclear bomb," he told E! News. "Season 6 is actually about the post-apocalyptic nuclear fallout in Lima, Ohio... There's always a song and dance about the nuclear bomb."

So maybe Criss wasn't giving out any real spoilers, but he did share his real feelings about the show ending, agreeing that it's bittersweet and "sad."

"Not many television shows are afforded the luxury of knowing when you're going to end so that's nice," Criss explained. "You have time to kind of wrap your brain around on it and get a little closure so I'm excited, but I'm definitely not running to the finish line by any means. I'm enjoying what I have left because I don't think it'll ever be like this ever again."

Not all news coming from the "Glee" set these days has this happy of an outlook, however. Feud rumors between Naya Rivera and Lea Michele have plagued the show, with some going as far as to report that Rivera was fired (which Fox denies). Chris Colfer (Kurt Hummel), on the other hand, says it takes "a great deal of effort" to stay out of the drama.

"I've seen some of my closest friends on 'Glee' go through where these horrible things are written about them and none of it is true, but some reporter wants to get a hit, they say so-and-so is a raging b*tch," he told People.

When it came to specific rumors about Rivera, Colfer said he would "rather not" talk about it.

"I don't want to say life is too short for drama, but I think I'm just too old for drama," he continued. "I'd rather go home and be with my cat and my dog than start a war with someone."

The Season 5 finale of "Glee" airs Tuesday night at 8 p.m. EDT on Fox. Season 6 will have a midseason premiere. Kevin Reilly, Fox Entertainment President, told TV Guide that the network may lessen the 22-episode season based on how Ryan Murphy, "Glee" creator, envisions the series finale.

Follow Scharon Harding on Twitter: @SH____4.

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