I believe you are referring to Season 2 Episode 1 of This American Life the tv show titled "Escape". Two sentence summary from the site:

"Mike and his mom get caught up in a fight that lots of kids have with their parents. Except in their case, due to some very specialized circumstances, they go through the fight in slow motion, over the course of years."

http://www.amazon.com/gp/product/B002V87A4S/ref=atv_feed_cat...