Tisha French

When people are killed by arsenic poisoning and handwritten death threats are found, the team pursues a suspect fascinated by Greek mythology; Hotch is worried about participating in a Career Day at Jack's school.

Kate and Toby go to Las Vegas for their bachelor and bachelorette parties. Meanwhile, Jack and Rebecca celebrate their anniversary.

The Walker family is willing to forgive and forget Scotty's infidelity but when the family all put their best foot forward to help them reunite, things end up in a fist fight. Meanwhile, Jack starts to pursue new ventures, but Kitty can't seem to picture herself in this new life; and Sarah and Luc share some exciting news with the family.

In an episode told from Cooper's point of view, we follow him from the moment of conception through a nasty fight with Charlotte, which inadvertently threatens the lives of their triplets.