I wish I knew then what I know now...

Fortieth birthdays have a nasty habit of self-reflection. The Brewer triplets are no strangers to regret. Brilliant neurologist April traded the chance to have a family for her celebrated career. Sunday, already a grandmother at 40, regrets getting knocked up in high school and giving up on her dreams. Recovering from addictions and illness, Lily wishes she could change...well, everything.

A well-intended birthday gift unwittingly sends the trio careening back in time to 1988, a crucial time in their lives where they make significant choices that place them onto the paths they've chosen. Trapped in their 17-year-old bodies, with their adult minds-and memories-intact, the sisters have the opportunity to do things differently. With their knowledge and experience, they could have anything their hearts desire. But what if their heart's desire is back in 2011?