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Jimmy thinks about introducing Fiona to his family, while Frank tries to bust Monica out of the psychiatric institution and Sheila and Jody try to raise Karen's child as their own.
Fiona tries to organize a Thanksgiving dinner with the little money they have left after Monica spent the Squirrel Fund. Meanwhile, Frank tries to get Monica out of her depression and Steve finally reunites Estefania with her boyfriend Marco. Elsewhere, Lip prepares a tape for his son, but the delivery holds a surprise for him.moreless
While Monica stirs things up, Fiona tries to plan her own future.
Monica shows up again and Frank tries to get his hands on the inheritance. Meanwhile, Jody and Sheila think they are haunted.
Frank discovers Ian and Mickey's relationship. Meanwhile, Jody and Sheila take care of Grammy who is dying. Lip wants to leave school and Fiona tells him about her plans to go back and get a GED.
Fiona walks into Steve and his new girlfriend Estefania on Jasmine's end-of-summer blowout. In the meantime, Frank tries to get rid of Grammy, while Fiona enjoys her company. Lip prepares a prenup for Jody and Karen.
Grammy Gallagher shows up to find her old meth lab pal who owes her money.
Frank believes he should get Eddie Jackson's pension when Eddie's body is discovered. In the meantime, Lip makes a discovery about Karen and Jody, Veronica doubts Kev is faithful to her and Fiona goes to a high-class wedding with her sugar daddy.
Fiona faces Craig's wife after sleeping with him. Meanwhile, Debbie develops a rash due to stress and Frank fears Sheila is about to kick him out of her house.
Frank tries to get closer to Dottie while Fiona meets a now married high-school crush of hers, and Kev thinks about buying the Alibi.
After Sheila's recovery, Frank starts looking for a new sugar momma until he meets a bar patron named Dottie. Meanwhile, Fiona keeps trying to handle her mother duties, her job and love life, while Debbie keeps asking for her own room.
Fiona spends her summer with a new guy and bartending, while Debbie runs a daycare at their home. Meanwhile, Kevin realizes his extended weed-growing left him with a huge electrical bill and Frank borrows his youngest son Liam to help him pay a debt.