John Thaddeus

Even though Carter and Lucy constantly bicker with each other, they join forces to save the life of a young girl who desparately needs a blood transfusion. Lucy and Carter search Chicago to locate her father, who is a perfect match for her rare blood.

When a serial killer covered in tattoos commits suicide, he leaves the BAU team clues to the identity of one last victim who may still be alive.

Simon is kidnapped and the Serenity is forced to make contact with an Alliance ship.

The team must work together to find Tony when he disappears during an undercover operation.

Denny takes Alan to Nimmo Bay, British Columbia, Canada, to help him get over his breakup with Tara. Catherine confesses to Bernard's murder. Sara and Garrett take extreme measures to help Denise challenge her husband's alimony demands in their divorce proceedings.

The Kelly Nolan trial continues, but Alan, Denny and Brad fear the worst when Kelly's cold demeanor begins to turn off the jury.