Plot: The Lohan residence turns into a real animal house when Ali goes behind her mom's back and brings home a new puppy, even after Dina has already said no. But between these two headstrong women, which one will back down? And with five pooches already in their pad, is Ali really ready for the extra responsibility? Meanwhile, Michael brings his girlfriend Nina home for an extended stay to get to know his mom and siblings, but their relationship takes a turn for the worst when she wants to leave early to visit her own family