It was an incredible day for multiple reasons. For one, it was Katy and Derick's wedding day. The the second? Derick was about to get the shock of a lifetime.

13 years ago, Derick had lost his little brother, Jake. Oddly, a little while before his passing, Jake had told him mom that he wanted to be an organ donor. Well, after his sudden and untimely passing, he became just that. And on their wedding day, Derick's new bride Katy, had secretly arranged for, Gracie, the recipient of Jake's heart 13 years ago, to show up so Derick could hear his brother's heart beat once more.

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