The team’s number one suspect in the death of a scientist is a super computer.

A young deaf girl is kidnapped, causing Allison to completely lose her hearing. With Allison at a loss, Joe decides to help her and Cynthia Keener investigate the kidnapping.

Barney meets his father and is shocked by the differences in their lives. The rest of the gang learn their “gaps”; knowledge they should have by now, but don’t.