Cat breaks up with Glenn, and Lola fakes a brain tumor to dump Owen. Later, they "console" each other. Blake is a sad clown, and Owens ex-partner tries to lure him back to be a cop. American forces raid the hills of Pakistan in search of bin Laden.

The staff is sympathetic about Lola's fake brain tumor. Glenn is arrested for trying to give an infant breast implants. Briggs recalls Owen's last days as a cop. Blake's healing powers of laughter are lacking. Cat falls in love again. Still no Bin Laden.

Blake recalls childhood traumas that made him who he is. A competing clown doctor arrives to threaten Blake's position. A visiting doctor experiences the hospital in a whole new way in this very special episode introduced by executive producer David Wain.

Cat's new love affair blossoms, provoking jealousy in Glenn. A visiting neurosurgeon Dr. Max Von Sydow, offers to cure the Chief of her myriad ailments. Cat deflowers her new boyfriend while Blake challenges Schacter to a laughter-off.

Jealous Glenn gives Cat's new boyfriend an unscheduled operation. Osama bin Laden is captured! Blake operates on Lola's non-existent brain tumor while the Chief undergoes major surgery. Will they make it? Probably not. But maybe. OK, one of them dies.