Sneak Preview: Octavia Spencer Gets Sober on 'Mom'

Oscar-winner Octavia Spencer shows off her comedy chops on Monday's all-new episode of Mom.

Related: Faris and Janney Make Dysfunction Funny on 'Mom'

In our sneak-preview clips, Christy (Anna Faris) and Bonnie (Allison Janney) stage an intervention for Spencer (as Regina), a fellow AA-er who is having a hard time getting sober.

This episode of Mom airs Monday, October 21 on CBS.