BrainDead

Laurel Healy returns to Washington, D.C. to work for her brother, Senator Luke Healy, as political gridlock paralyzes the government and a strange infestation threatens Capitol Hill. A growing number of lawmakers and staff are falling victim to bizarre brain-eating bugs.

Laurel continues her inquiry into the death of prominent Dr. Daudier as an unusual insect infestation spreads through Washington, D.C. Rochelle Daudier, the doctor's daughter, and Gustav Triplette, an eccentric intellectual, each encounter the bugs and start to probe the mystery behind their appearance.

A shocking and unusual death during a live broadcast prompts Agent Onofrio to investigate, leading Laurel, Gustav, and Rochelle to explore the ongoing bug mystery further. Meanwhile, Luke tries to conceal his relationship with his Chief of Staff, Scarlett, before his political rival, Senator Ella Poundstone, can use it against him in the race for minority whip.

Laurel and Rochelle work to convince Laurel's friend Abby to undergo an MRI in hopes of discovering the source of the unusual behavior affecting Washington, D.C. Meanwhile, Luke pursues a clandestine agreement with Republicans to restart the government.

Laurel enlists her brother Luke's help to get the CDC to investigate a growing bug infestation, but he directs her to consult Dr. Joanne Alaimo, an expert entomologist, first. Meanwhile, Laurel's relationship with Anthony undergoes a significant shift.

Laurel becomes infected by the bugs, prompting Gustav and Rochelle to urgently search for a way to save her. Meanwhile, Luke tries to restore funding to the Centers for Disease Control after it is temporarily cut, but his efforts are repeatedly thwarted by Red's political interference.

Laurel faces scrutiny over her possible role in the bug infestation, while Gustav and Rochelle make a breakthrough in communicating with those affected by the insects.

Rochelle and Gustav detain a man they believe may be infected by the alien bugs and interrogate him. Meanwhile, Luke and Red clash during a Senate Intelligence Committee meeting over the possibility of an impending war.

Senator Red Wheatus enlists a private investigator to look into the Healy family's finances and personal affairs, while Gareth discovers compromising information about Laurel's past relationships, causing tension in their new romance.

Laurel collaborates with her former boyfriend, Ben Valderrama, as Luke recruits her to assist in creating a documentary supporting his anti-war campaign. Meanwhile, she becomes concerned about the well-being of Luke and Germaine's unborn child.

Luke and Laurel investigate a large budget bill to uncover Red's hidden plans, while Gareth stumbles upon a strange and disturbing incident involving a bug in Red's office.

Laurel uncovers discrepancies in a Senate bill and enlists Luke's help, sparking a high-stakes Senate sit-in. Meanwhile, Red and Ella clash over control of the bug initiative, and Laurel contemplates leaving Washington, D.C. permanently.

Laurel discovers a method to remove the parasitic bugs from a person's brain and uses it on her father. She and Gareth then try to permanently remove the Queen bug from Red's mind. Meanwhile, Laurel and Gareth grow closer romantically.