A week after stepping into the world of fashion, 90210 will close out 2011 with an early holiday celebration.

On an episode we already know will conclude with Liam's life in the balance, fans can also look forward to the following developments on next week's installment:

• Naomi is asked to plan Holly's birthday party.
• Annie breaks into Jeremy's apartment.
• Navid runs into trouble regarding his uncle.
• Liam discovers something shocking about Annie.

Watch the official CW preview now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.