Carrie discovers Mr Big was previously married, and he and his ex participated in threesomes.
Benson and Stabler investigate the death of a man outside a gay club, and they find themselves entering the world of pornography.
An investigation into the death of a baby leads the team to a smuggling operation that uses baby formula to hide cocaine.
The body of a little boy is discovered inside a drainpipe and the evidence shows that another child may be the suspect.
A woman who apparently died in a car crash may actually be the victim of her vengeful best friend, devastated that the 9/11 widow stole her husband.