A promo and stills have been released for The Big Bang Theory season 7, episode 4, previewing an unexpected milestone for Sheldon and Amy.

The Big Bang Theory season 7, episode 4 airs on Oct. 10, and new stills and a preview give viewers a fun look at the hijinks ahead for the geeky gang.

The official summary for the episode, titled “The Raiders Minimization,” hints that everyone will be trying something new this week:

Sheldon seeks revenge after Amy ruins one of his favorite movies. Meanwhile, Leonard discovers a way to get Penny to do anything, and Raj and Stuart create online dating profiles.

Whether or not those new experiences are a good idea remains to be seen, however. The promo for the The Big Bang Theory season 7, episode 4 strongly suggests that Sheldon and Amy will regret their steps forward in “The Raiders Minimization.”

While we do sympathize with Sheldon – seriously, who doesn’t love Indiana Jones? – hell hath no wrath like an Amy scorned. Sheldon’s quest to ruin one of Amy’s favorite things may not end in quite the way he expects; maybe he’ll actually end up appreciating one of his girlfriend’s interests himself!

(Long shot? Probably.)

Anyway, a bunch of still photos from The Big Bang Theory season 7, episode 4 show Sheldon, Amy, Raj, and Stuart (Kevin Sussman) all making questionable decisions. It’s not entirely clear what Leonard and Penny are doing… but should we be nervous if Penny is reading?

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

The Raiders Minimization

It’s nice to see Raj and Stuart hanging out together again – last season, Stuart had almost made a place for himself in Raj’s life while Howard was in outer space. Here’s hoping the perpetually gloomy comic book store owner manages to find some happiness! (Don’t hold your breath, though.)

Along with Kevin Sussman as Stuart, Christine Baranski will return to guest-star as Leonard’s imperiously scientific mother. Could this be the source of Penny’s strange behavior? Is Leonard’s mother a witch? We’ll have to wait and see.

The Big Bang Theory season 7, episode 4, “The Raiders Minimization,” will air this Thursday at 8 p.m. on CBS.

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