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Here's the back story of everyone who appeared in the new Nike 'Dream Crazy' ad featuring Colin Kaepernick

INSIDER Logo By Susanna Heller of INSIDER | Slide 1 of 17:  On Wednesday, Nike released the extended version of its "Dream Crazy" ad. The two-minute video is narrated by Colin Kaepernick and features many athletes who have overcome odds to be where they are today.  The ad features the stories of 16 athletes with inspirational stories, ranging from Charlie Jabaley, an Ironman who completely change his life, to tennis legend Serena Williams. The main theme is this: "Don't ask if your dreams are crazy. Ask if they're crazy enough." Watch the ad below and then keep scrolling to read the inspirational back stories of everyone featured in it. Youtube Embed: //www.youtube.com/embed/Fq2CvmgoO7I Width: 800px Height: 450px

On Wednesday, Nike released the extended version of its "Dream Crazy" ad. The two-minute video is narrated by Colin Kaepernick and features many athletes who have overcome odds to be where they are today.

The ad features the stories of 16 athletes with inspirational stories, ranging from Charlie Jabaley, an Ironman who completely change his life, to tennis legend Serena Williams.

The main theme is this: "Don't ask if your dreams are crazy. Ask if they're crazy enough."

Watch the ad below and then click through the slideshow above to read the inspirational back stories of everyone featured in it.

© Nike

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