By Peter Lesser (staff@latinospost.com) | First Posted: Jul 22, 2013 12:10 PM EDT

AMC has long remained tight-lipped on the final eight episodes of the hit series "Breaking Bad." As one of the most enthralling and riveting shows on television, fans are persistent in their search for any details that help shed some light on the finale. Finally, at this past weekend's Comic-Con panels, fans' prayers were finally answered.

During the anticipated "Breaking Bad" panel, Bryan Cranston and the rest of the crew debuted the opener of the mid-season premiere. The clip featured Walt walking into a dirty, abandoned home chock full of flies that add to its overall gritty interior. He removes an outlet cover to reveal a small tube of ricin he presumably used back in season 4 to poison the young Brock. Then the camera turns to show "HEISENBERG" written in graffiti on the mucky walls of the living room. As Walt calmly leaves, a curious neighbor watches him opening and closing his car trunk filled with firearms. His response? "Hello, Carol."

According to The Hollywood Reporter, the clip spawned a series of questions from those in attendance, one of which has been burning on fans' minds since season 4. How did Walt have time to poison Brock?

"It was a tight timeline, but my writers and I did have our 'evil juice-box man' theory," said creator Vince Gilligan. "Our best guess - and Walt would have had just enough time to do it - is that he crushed up some of the [poison], put it in a juice box and somehow got into Brock's school. That's how it happened. He was a very motivated individual at that point."

Dean Norris, who plays Walt's DEA brother-in-law, also set aside some time to talk about the series' return during an interview with TVLine. He warned that the final eight episodes "will hit you like a freight train" and promised that fans will be more than satisfied with the conclusive ending. Check out the entire interview below.

"Breaking Bad" will return to AMC for its final eight episodes on August 11.

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