Jay’s birthday brings everyone together and Phil is beside himself over the super cool gift he got Jay, a high-tech outdoor grill. Claire and Mitch decide they will “offer” to pay back the money Jay loaned them ages ago as their gift not really thinking he will take them up on it, and Gloria teaches Manny and Luke a lesson about drinking, while Andy gets real awkward with Haley when she brings over her new doctor boyfriend.
Frankie accompanies Brick on a school field trip and attempts to help her socially inept son make friends with a couple of boys. Devin scolds Axl for being mean to his sister. Mike gets a sinking feeling that he may have bullied his brother Rusty a bit too much as kids.
During an attack on the mayor’s office, Ray is critically injured. Felicity is pleasantly surprised when her mother, Donna Smoak, shows up at the hospital to offer her support. With the SCPD out in full force looking for the assailant, Oliver and his team work hard to stay one step ahead of the police to find the man responsible. However, things come to a head when Ra’s al Ghul kidnaps Captain Lance.
War comes to Coulson’s doorstep in a way he never anticipated as shocking revelations are brought to light, and Skye struggles to control her new abilities but will soon make a decision that irrevocably changes her life.
A copycat killer who goes by the name “The Trickster” starts setting off bombs in Central City. In order to stop the villain, Barry and Joe meet with the original Trickster, a criminal mastermind named James Jesse, who has been imprisoned for 20 years. Things quickly go from bad to worse when the Tricksters unite and take Henry prisoner. Meanwhile, Iris asks Eddie for help with a case and flashbacks show how Harrison Wells came up with the idea for the particle accelerator.
The school board invites the Dean to become a member as long as he promotes his “homosexuality.” Chang auditions for “The Karate Kid,” with Annie’s help, and endures abusive treatment from the director. Abed tries to save baby birds nesting on the Greendale Internet router with the help of Elroy.
When Richie “The Pitbull” Falco, a larger-than-life personal-injury attorney is found dead, Beckett and Castle investigate the many clients and competitors who had motive to kill him. But the mystery deepens when they discover a shocking secret that may be linked to Richie’s murder.
Chuck urges Jimmy to accept a harsh truth. Meanwhile, a deal threatens to go off the rails when Mike’s ability to complete a job is called into question.
Marty is on the verge of making K&A one of the biggest players in the business, if he can persuade his employees to stay. Jeannie gives birth. Clyde, Doug, and Kelsey await an offer – and Roscoe faces the consequences.
Concerned about repercussions from Denna, Marty looks to secure his place at K&A. Jeannie receives an exciting proposition. Clyde reaches out to his father, and Roscoe is at the center of an ugly incident at school.