Sandy must once again represent an incarcerated Ryan after his arrest for the model home fire. After he is released, Ryan and Sandy continue to search for his mother, Dawn, and Ryan is faced with the prospect of his mother re-entering his life. With few choices before him, he agrees to give Dawn a second chance and accepts her promises to change when she appears at the Cohen house.
In an attempt to solidify this tenuous bond, Kirsten invites Dawn to accompany Ryan and the Cohens to Casino Night. Once there, Dawn is unable to resist the temptation of alcohol and gambling and fails Ryan once again; Dawn and Kirsten both agree that Ryan will be better off in the Cohen household.
Meanwhile, Sandy discovers that Kirsten has lent Jimmy $100,000 to help with his debts, while Julie simultaneously learns from Jimmy that Kirsten is now supporting their lavish lifestyle, culminating in a confrontation between Sandy and Julie at Casino Night.
Summary from fox.com