Leroy and Max decide to take another person with them to go trick-or-treating, but problems arise when the person is infected with a zombie-like virus.

With the encouragement of Max, Leroy romantically pursues a female cop, while they work on-site at a local resort. As the pair search for the culprit behind a string of murders, Captain Lafrey has Annie and Barry investigate her daughter, who may be sneaking behind her back with a boy.

LaFrey's boss, Director Romslo, puts the whole office on lockdown when a deadly amphibious creature escapes in The Bureau Underground, giving Max and Leroy only 30 minutes to eliminate the threat. The creature's first victim is everyone's favorite coworker, Bob. Unbeknownst to the team, the Sparkletts water boy is locked in the building with them, as well. Amidst the chaos, Leroy starts to suspect that Annie has a crush on Max.

When Max and Leroy investigate a bizarre incident at an elite country club, they both get a little too invested in their covers and find themselves at odds. Also, Annie accompanies them on the mission, as she frequented many country clubs in her youth.

While Captain Lafrey is out, Annie installs a smooth-talking Artificial Intelligence, "Sam," to manage the office, but Max and Leroy are put to the test when "Sam" turns out to be an evil and powerful force trying to take down the Bureau Underground. All the while, Max is jealous when Leroy makes a new friend.

When a pair of smug actors, Chaz and Jared, from the ghost-hunting show "Ghost Studz," accidentally stumble upon real paranormal activity, Max and Leroy must go undercover on set at an abandoned mental hospital to save them. Leroy resents the "perks" the actors get with their fame, realizing he and Max will never enjoy the same benefits working in a top-secret bureau. Meanwhile, Barry demands some perks of his own.

When a young girl goes missing at a haunted hayride, Max and Leroy go undercover to determine if it was a paranormal act or just a publicity stunt. Meanwhile, Barry brainstorms ways to "bro-bond" with Max and Leroy.

Max and Leroy invite Annie to tag along on their next case, as she is an expert on the killer creature they are trying to find, but Max's survival skills are put to the test when they lose their way in the woods. Back at The Bureau Underground, Barry proves himself an asset in solving Captain LaFrey's dating struggles.