'The Big Bang Theory' season 9 episode 20 spoilers: Never Have I Ever game goes awry in 'The Big Bear Precipitation'

Leonard has some explaining to do in "The Big Bang Theory" season 9 episode 20. CBS

The big secrets just keep coming in "The Big Bang Theory" season 9. After Amy learns of Sheldon's hoarding secret, episode 20, titled "The Big Bear Precipitation" will drop another bombshell -- this time about Leonard.

"The Big Bang Theory" season 9, episode 20 follows Amy and Sheldon as they join Leonard and Penny on a weekend getaway in the woods. Needless to say, Amy talks Sheldon into going.

During this couples escapade, the night takes a bad turn as Sheldon accidentally spills the beans on Leonard's secret that no one other than him was supposed to know.

The secret was spilled during a drinking game of Never Have I Ever in the cabin, which started naively until bigger and more personal bombshells were dropped.

Sheldon's revelation ruins the trip for Penny and Leonard, who will spend the rest of the night bickering, as seen in the promo photo above for "The Big Bang Theory" season 9.

During this "The Big Bang Theory" season 9 episode, Penny will also open up about her job at the pharmacy and how unhappy she has been. Despite this, though, she also emphasizes that she won't go back to acting.

While Leonard does some explaining to his angry wife in "The Big Bang Theory" season 9, episode 20, back at home, Raj shows immense excitement towards the idea of Howard and Bernadette having a baby. He helps them with errands and researches information on pregnancy that he thinks the two will find useful. Raj then starts giving a truckload of gifts to the baby, including an eight-foot teddy bear, which draws the line for Howard and Bernadette.

This pushes Howard and Bernadette to talk to Raj about going a bit overboard about the whole thing. Unfortunately, Raj does not take it very well, putting Howard and Bernadette in a complicated position.

"The Big Bang Theory" season 9, episode 20, "The Big Bear Precipitation," will air April 7 at 8 p.m. ET on CBS.

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