Robin mui xe proves hero habits die hard in 'Once Upon a Time' sneak peek 

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Starting a new life is harder than it looks, especially when you\'re a forest dweller who suddenly takes up residence in New York City.

, Robin and Marian arrive in the Big Apple and are prepping to set up a home base, with help from Baelfire, who\'s opened up his apartment to them. But blending in prove impossible for Robin, especially when he\'s called in for hero duty after a man tries to steal Marian\'s purse.

‘Once Upon a Time’ was full of shocking reveals, including a blast from Emma’s past

The sneak peek above from the episode, titled "Heart of Gold," explains more.

Once Upon a Time airs Sundays at 8 p.m. ET on ABC.

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