As Angel and his friends try to determine what kind of baby Darla will have, Holtz starts his search for Angel… while Lilah and Nathan send out a SWAT team…

When Horatio’s nemesis, Walter Resden targets someone close to him, Horatio tries to stop him. Also Eric Delko’s relationship with Natalia is tested when she thinks she may be pregnant.

A strange yellow rain kills a migrant girl, and her family believes that a mythical creature was the cause and has manifested itself inside the brother of her fiancé, who…