S4E14 · Off the Hook

Complete story — includes the ending

After a juice-driven night with Lucille Austero, Buster wakes up to discover that he has missed his mother's trial. On a search for a new mother after Lucille Bluth disowns him, Buster moves in with Lucille Austero but she soon kicks him out for being more of a son than a lover. Buster, with nowhere else to go, re-enlists with the army to try and capture his real mother's attention, and is assigned to be a drone pilot. Buster believes he is playing a video game, and becomes skilled at the job. When he learns he is hurting real people, he suffers a panic attack and ends up injuring himself. Buster is taken to the hospital where he receives an over-sized and overly powerful left hand replacement. Buster is told by a doctor that with his powerful hand, he'll be used in battle by the army. Subsequently, he begins to deliberately fail his tests, which are being used so he gains control of his new large hand. Buster then fails the "Cute Test", (not killing an adorable kitten, showing he has control of his hand), he is discharged from the army. Buster is adopted by Ophelia Love, the wife of Herbert Love, to support Herbert's campaign as an injured war veteran. However, Ophelia begins an affair with Buster when she learns about Herbert's infidelity and then abruptly ends it, choosing to give Herbert a second chance, and kicks Buster out. Buster goes to Cinco de Cuatro seeking revenge against Herbert Love but runs into Lucille Austero, who reveals that she deliberately gave him juice the night before his mother's trial so that Lucille Bluth would be locked up. Horrified, Buster goes on a juice-fueled rampage, knocking Herbert Love into a coma. After accidentally incriminating himself into Lucille Austero's disappearance, Buster attempts and fails to use George-Michael's 'Fakeblock' software to erase the footage.