Callie's psychotic, prankster ex-boyfriend escapes from an asylum and wreaks havoc on Mark's life.

Manbird season hits New York City, and Mark finds himself the guardian of a fledgling separated from its flock.

Callie must care for her younger, hotter demon sister, who happens to be engaged to Twayne.

Mark helps Leonard with his magic wand issues, and Twayne Boneraper meets his two-dimensional soulmate.

A rabid Bat Boy takes a bite out of Mark, transforming him into New York City's latest superhero.

Twayne and Callie build a summer camp to cover up their raid on a wizard training ground.

Twayne quits after getting roasted at his DOI 10-year anniversary party, leaving Mark in charge.

Callie is promptly promoted after turning into a man, causing strife in her relationship with Mark.

Callie goes baby-crazy when Mark fosters a demon orphan, and Twayne notices odd changes in his body.

Mark and Randall teach a sexed up robot self-control, and Callie mixes up Mark in a demonic ritual.

Grimes' judgmental mother rises from the dead, and a neglected Randall reconsiders his living situation.

Randall joins a zombie cult, and Mark performs psychiatric evaluations on his coworkers.

Mark and Randall spend Halloween with Callie's family, and Leonard tries to find people to live in a haunted house.

When his favorite TV series ends with a dumb twist, Grimes has a complete mental breakdown.

Mark accidentally reactivates Leonard's magical arranged marriage.

Callie makes an evil Mark clone to compete in the DOI bowling league tournament.

Mark hooks up with an old girlfriend to test his open relationship.

A Lilliputian arsonist escapes Mark's custody and finds an unlikely hiding place in Twayne's nose.

After being drafted into Satan's dark army, Twayne and Mark must do their patriotic duty and end the world.

Mark cares for an undocumented werewolf, and Leonard envies his famous magician brother, Christ Angel.

Mark accidentally outs Randall as a zombie, and Leonard tries to identify a strange new creature.

Mark helps an old tree get its groove back, and Randall loses his favorite non-vital organ.

Randall's new arm lands him on the DOI's intramural football team, and Callie pimps out Leonard.

A New York Department of Integration social worker helps supernatural creatures adapt to city life.

Mark walks a young couple through the trials of vampire love, and "Larry King disease" ravages New York City.