Sherlock takes on his scheming brother in this scene from the Elementary episode "Paint It Black."
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Sherlock is forced to work with his brother to solve a case on Elementary. "Paint it Black" is the 22nd episode of the show's second season.
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Elementary Season 2 Episode 22 Quotes

Is that what you think Joan is? A counter balance.

Sherlock

[To Mycroft] I wish it had taken you. The leukemia. I wish it had taken you to the bones.

Sherlock