The Big Bang Theory Season 6 finale, "The Bon Voyage Reaction," airs Thursday in the U.S. via CBS. What awaits the avid viewers of this hit sitcom a year after astronaut Wolowitz was launched into space? Simon Helberg dishes some scoop!

Spoiler alert: This feature contains some major TBBT 6 finale spoilers. There will be some surprises. Read at your own risk.

Apparently, The Big Bang Theory Season 6 finale will involve yet another extraordinary long distance trip. "Stephen Hawking's crew is sending an expedition to the North Sea and there's an opening, so one of the guys decides to give it a shot, and there's a ripple effect throughout all the directions of the show, how it's going to affect them," Helberg told Screencrush.com.

"People are scared, people are threatened, people are jealous, and there's a lot to deal with," the actor who plays Howard Wolowitz noted, adding, "There's also something that's pretty unprecedented in the finale that we have not seen yet in all of the past seasons, so it's pretty exciting."

The lovestory between Penny and Leonard is typically The Big Bang Theory's main closing story. They date, they deny their feelings, and they break-up. They sleep with other people and tackle a wedding proposal in bed. TBBT fans have seen these things in the sitcom's finales. Now, they have another huge thing coming.

What unprecedented "something is this?" In its report, TV Line hinted a break-up is happening on the TBBT finale. This won't be new for Leonard and Penny, but it could be for Raj and Lucy. Still, TBBT reports are definitely suggesting a conflict involving the series' first couple. After all, it is Leonard who is bound to the North Sea.

Going into Season 7 with ratings consistently high, The Big Bang Theory has gone a long way in dishing geeky fun and laughter. Whatever happens in the finale is not likely to diminish the fans' interest in this show (at least not yet).

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