Hal papers the neighborhood with notices in an effort to find Malcolm, who is hiding out in his girlfriend's attic.
Charlie realizes Jake's classmates know the words to all of his jingles, and he is inspired to craft the fourth-grade musical with unusual results.
Jane and Maura must conduct a secret investigation when a shooter begins to target marathon runners.
Murray’s (Jeff Garlin) mustache ignites a feud between Beverly (Wendi McLendon-Covey) and his best friend, Bill (David Koechner). Barry (Troy Gentile) is convinced he’s lost Lainey (AJ Michalka) to Boy George.
Pops is evicted after accidentally starting a fire in his apartment during a Halloween party; Barry wants something in return after "saving" Erica from an urban legend.