Story highlights "We didn't realize that our family was this broken," Joshua Boyle said

Boyle said son, born in captivity, had never seen daylight before family was freed

Smiths Falls, Ontario (CNN) Joshua Boyle said the gravity of the situation his family survived is starting to sink in.

Now that he, his wife, Caitlan Coleman, and their three children are safe, he's beginning to realize the impact five years in captivity had on his family.

"We're pretty broken and we didn't expect this," Boyle told CNN's Paula Newton on Sunday.

Boyle and Coleman were kidnapped in Afghanistan by terrorists from the Taliban-affiliated Haqqani network in 2012. Coleman was pregnant at the time of their kidnapping, and all their children were born in captivity.

They were freed Thursday in a mission that Pakistani forces carried out based on intelligence from US authorities.

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