Mickey is heartbroken when Ian leaves to join the army. Sierra turns to Lip which develops into a relationship.
Frank and Carl track down Sammi, where he finds her with a child of her own. Charlie (Chet Hanks) is Sierra's ex-boyfriend and Lucas' father. When Ian and Mickey get engaged, Terry goes ballistic and attempts to prevent the wedding by burning down the venue. In season 10, its revealed that Derek died having gotten "sideways drunk stole the tank, drove it into the Suez Canal" and had thought said tank was a submarine. The show acts like a year goes by with every season but it doesn’t.
In season 5, Lip works for Tommy in construction. They get into a fight because Ian does not like Mickey nursing him and accuses him of going soft; they make up immediately as Ian says the fight is the first time he has felt something since his symptoms started.
The next day, she takes ecstasy, joyrides with Robbie's friends, and is abandoned at a gas station.
In season 3, V and Kev are heartbroken to learn they are unable to conceive. Meanwhile, Fiona tries to get Ian to take his meds and to get Debbie to the clinic for a pregnancy test.Debbie carries a bag of flour around all day to prove Fiona wrong about her ability to raise a child while going to school, but she quickly realizes people are not as accommodating to mothers and babies as she hoped.Frank teaches Debbie how to work the welfare system to her advantage. Luther learns of Carl's decision to go and shows Carl that Dominique is with a new boy, which causes Carl to set himself back on the path of military school and he thanks Luther for it. After he ruins Fiona's wedding the Gallagher kids (except Lip, Liam, and Fiona) and friends have had enough of him and throw him off a bridge into a frozen river. Their difference of opinion quickly descends into a brawl.The season six premiere finds our Gallaghers more stable than ever, but that only means it's the fall from grace will be harder and more devastating.We've been following the Gallaghers for six years now, and the series has never been one to tie a neat, shiny bow on its story lines. Though Terry again tries to interrupt, Ian's former Gay Jesus followers step in to keep Terry from succeeding. Youens tries to convince Lip to go back to college; Lip agrees to attend an appeals hearing, but is denied because of his previous actions. He awakens with brief amnesia. In season 3, Mickey is let out for overcrowding and continues his relationship with Ian. But her orderly home and natural mothering instincts are attractive to many of the Gallaghers, despite her peculiarities. Lip is one of the few put off by his father's change but is pleased by him putting in the effort. She considers several avenues for making money, including prostitution and panhandling. He leaves weeping. But his wife, the Brazilian drug dealer's daughter, continues to throw a wrench in his plans.Sheila is the neighborhood kook who suffers from agoraphobia, sexual kinkiness, and the demands of a neurotically clean house. Fiona buries her portion of the inheritance meth in Monica's casket. By season 7, Kev is in a polyamorous relationship with Svetlana and Veronica. The image is an example of a ticket confirmation email that AMC sent you when you purchased your ticket. His deception is soon discovered, but Ian convinces his boss to let him keep his job despite his mental illness. In Season 10, Frank recovers from his injuries and resumes his old habits. At the end of season 3, after learning Mickey impregnated and married a Russian prostitute, Ian runs away. When that fails, Terry tries to interrupt the reception with a gun, but Ian's old Gay Jesus followers form a human blockade to prevent Terry from getting in. Frank eventually sees Mickey and Ian having sex at the Kash and Grab; Mickey is afraid Frank will expose him and plans to attack him, but refrains for Ian's sake. Her involvement in her social life causes her to neglect Neil, who breaks up with her. In their second year of college, she invites Lip to move in with her at an off-campus apartment. She becomes more attached and possessive of Lip as she falls in love with him while Lip distances himself as he falls for Helene, even going so far as to blatantly ditch Amanda. She gives birth to their son "Freddie" in the first episode of season 10. In season 2, Karen reveals to be pregnant with what is believed to be Lip's baby. Mandy Milkovich, Mickey's sister, is from the only family in the neighborhood worse off than the Gallaghers. Lip and Tami find out they are pregnant and they decide to have the baby and make the relationship work. She begins to be more independent while still assisting her family. Although these revelations strain their relationship, they eventually reconcile.