Malcolm and his brothers build the ultimate stealth weapon, while Hal and Lois battle a speeding car that terrorises their neighbourhood.

The team is hired by the Department of Defense to test the security at Fort Knox by trying to break in and steal a precious artefact.

In Chernobyl, Sylvester and Paige become trapped inside a decaying nuclear reactor that the team is trying to repair before a tragic meltdown.

JD has a tough time juggling his work and his personal life, Cox spends time with his daughter, and Turk is spooked by a series of erotic dreams about Elliot.

Booker wants Levi and Tess to help him convince Nia of his newfound ability to see into the future. Raven's latest vision involves a family disagreement that causes her to meddle in her kids' lives at school.

Greg and Jen employ Allie as their chef, for Valentine's Day. Matt and Colleen try to adopt a dog from a judgmental animal advocate. Meanwhile, John and Joan attempt to buy a classic car.

Booker and Tess decides to plan their sixth grade dance. Meanwhile, Raven volunteers at the school, and Nia is worried about her dancing skills.

Nick helps a disabled boy, the son of a sex worker, collect child support from his biological father.

In an attempt to get some time to themselves, Clem and Nick organise an afternoon rendezvous that falls apart when Shannon is sent home from school for not adhering to the dress code.

Burton risks everything to try to save Nick from a jail sentence after he is arrested on aggravated assault and cocaine possession charges.

Alvin and Nick clash over ethics after a corporate client asks him to test a new product and he gets the kids at LSP to try it.

Phyllis regrets giving Michael an important job at her wedding; Dwight plans to catch wedding crashers.

Michael, Jim and Karen go to New York to be interviewed for a job opening; in Scranton, the new regime institutes sweeping reforms; Jan comes in with exciting news.

Michael tries to help the staff grieve after learning that the former regional manager has died.

Michael organises a party in his hotel room when he, Dwight and Jan attend a convention in Philadelphia.

Michael brings two adult performers into the office in honour of Phyllis' wedding shower; Karen confronts Pam about her past with Jim.

Michael tries to be supportive after learning that a new employee is an ex-convict; the staff compare the office to a prison.

Andy returns from anger-management classes, planning to make a fresh start with his co-workers; Michael and Dwight try to illustrate the dangers of the workplace.

Michael urges the staff to support Kelly and attend a local celebration of the Hindu Festival of Lights.

Michael returns from his Jamaican vacation, and an email of his racy holiday photo makes the rounds of the office.