Kevin and Madison navigate their engagement as Kate and Toby take a big step in their adoption journey; Jack and Rebecca brace for puberty.
The BAU races to capture the vigilantes behind a series of attacks taking place every 27 minutes in the nation's capital; Prentiss and Unit Chief Andrew Mendoza lead the effort to identify the vigilantes and what's motivating them.
In preparation for her new charity venture, Nora makes a clean sweep of William's belongings; Robert interviews candidates for Kitty's job; Holly starts to look for William's missing son.
A health crisis causes an emotional confrontation between Tommy and Kevin; Justin decides to leave the nest.
Chloe takes June drinking in the financial district, where she finds a hot broker and a job offer; James is paired with the worst dancer on "Dancing With the Stars."