Watch Dancing with the Stars Pros Go Back in Time on Marvel's Agent Carter

Isn’t it dreamy?

Based on a comic book character, Marvel’s Agent Carter isn’t known for it’s realism. But a dream sequence on Tuesday’s episode will take the fantasy elements to a whole new level.

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“Daniel, what in the bloody blue blazes is happening,” Agent Peggy Carter (Hayley Atwell) asks Agent Sousa (Enver Gjokaj) in a preview clip of the scene.

As the dream sequence – which is exclusive to PEOPLE – continues, Agent Sousa, who normally walks with a limp, drops his crutch and begins a song and dance routine that sweeps Agent Carter off her feet.

For Atwell, getting to glide across the dance floor is a return to the art that helped the actress prepare for her physically demanding role.

“We have a great stunt coordinator [on Agent Carter] who walks me through all the stunts as if they were a dance routine,” she has told PEOPLE. “I studied dance in school, so I kind of had a natural instinct of how to do it.”