: The Shelby brothers' estranged father, Arthur Shelby Sr., returns to Small Heath, claiming to have changed. While Thomas is immediately suspicious, Arthur Jr. desperately wants to believe him, eventually giving him £500 to start a casino in America. His father promptly abandons him again, leading a devastated Arthur to a harrowing suicide attempt that he narrowly survives.
highlighted the "layered plot lines providing some truly powerful drama," particularly noting Arthur’s heartbreaking arc with his father.
Critics often cite this episode as a return to form for the series, praising its layered plot and the intense performances by (Tommy) and Paul Anderson (Arthur).
: The "will they, won't they" tension finally breaks as the two spend the night together. In a rare moment of vulnerability, Tommy tells Grace that when he is with her, he no longer hears the "shovels against the wall" from his time in the war. Critical Reception
: Grace finally discovers the location of the stolen government machine guns hidden in the false grave of Danny "Whizz-Bang." Torn between her duty and her feelings, she tells Inspector Campbell where they are in exchange for a promise to spare Thomas.
: Thomas deals with an IRA chief, Malacki Byrne, who has come to avenge his cousin’s death. This leads to a brutal confrontation at The Garrison Pub where Tommy and Grace end up killing the IRA members. This scene is pivotal for Tommy and Grace, as they acknowledge each other's capacity for violence.
: Betrayal, PTSD, loyalty, and the burden of family.