In this emotional sequel to Diary of a Teenage Girl, Caitlin O'Conner faces new trials as she grows in her faith and strives to maintain the recent commitments she's made to God. As a new believer, Caitlin begins her summer job and makes preparations for a Mexico mission trip with her church youth group. Torn between new spiritual directions and loyalty to Beanie, her best friend (now pregnant), Caitlin searches out her personal values on friendship, romance, dating, life goals, and key relationships with God and family. Tough choices threaten her progress, and her year climaxes in her realization that maturity sometimes means life-impacting decisions must be made ...by faith alone.