Doctor Who took on some over-arching, season-long stories in recent years, but the Twelfth Doctor will spend season 8 puzzling out more episodic problems.

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Unlike Eleven's (Matt Smith) long running investigation into the cracks in the universe, Trenzalore, and the Impossible Girl, Peter Capaldi's first year as a Time Lord will treat fans to more one-off plots.

"Yes [there are over-arching plotlines], but at the same time 90 percent of every episode is a stand-alone adventure," revealed showrunner Steven Moffat, according to Entertainment Weekly (via Doctor Who TV).

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However, the premiere ("Deep Breath") will be a feature length episode while the finale will be a two-parter. Although the majority of the events that play out in Victorian London during "Deep Breath" may not have any bearing on later episodes, it will still be a long-form story.

Also different from past years, Twelve will choose to stick close to Earth. Despite his ability to travel across the universe, the Doctor will be busy protecting humanity.

"We've got quite a lot of Earth stuff this time," Moffat told Entertainment Weekly. "But it's proper variety, and I think I'll not tell you what's going to be on the roller coaster in advance."

Find out more when Doctor Who returns to the BBC and BBC America on Aug. 23. Click the video below to see a preview.

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