Song-writing duo Tom Levitt and Julia Houston, who had planned on taking a break from Broadway, find themselves drawn back in when they get the desire to produce a musical based around the life of Marilyn Monroe.

Ivy and Karen jump through hoops for the brilliant but temperamental director Derek Wills as they pursue the role of a lifetime.

The search begins for a Joe DiMaggio to play opposite Marilyn - but everyone's first choice, Michael, has a secret.

Karen must learn to advance in the high-stakes world of Broadway, as Derek hosts a party for hot young star Lyle. Eileen tries a sly new strategy for raising funds, while Tom goes on a first date.

Karen finds a new use for her acting talents as she joins Dev at a high-powered government party. The drama between Michael and Julia heats up, as Eileen and Tom's ambitious assistant Ellis forge an alliance. Ivy senses trouble in her relationship with Derek.

Ivy faces major vocal issues, while Julia struggles to avoid Michael. Meanwhile, Karen books a side gig at a bar mitzvah.

Eileen, Derek and the team present Marilyn the Musical to would-be investors. Ivy struggles to perform. Karen must make a difficult choice. Julia and Michael face the consequences of their actions.

The team deals with the workshop's after-effects. Derek asks Karen to help him steal the show from Tom and Julia. Eileen's daughter's surprise visit forces her to deal with her ex-husband.

Julia and Tom must find a title for the recently reinvigorated musical as Ivy and Karen compete for an orange juice commercial.

When the show's new star gets stuck in Cuba, Derek puts Karen in as understudy.

The arrival of a movie star turns Bombshell upside-down. Ivy and Karen try to overcome their history and unite against their new rival.

Karen finds herself seduced by the glamorous life of new BFF Rebecca Duvall. Eileen introduces new beau Nick to ex-husband Jerry, while Julia panics when her son Leo goes missing.

Bombshell moves to Boston as it finally finds its way to the stage. The cast and crew are all bubbling with anticipation, bracing themselves for the chaos associated with.

Bombshell faces its first audience just as a major crisis hits Rebecca Duvall. The team of Tom and Julia scramble to fix the show when the first preview falls short, and Frank must adjust to the unwelcome return of Michael Swift to his life.

The big night is finally here. Tom and Julia race against time to save the show, while Derek makes a decision that will change the lives of Karen and Ivy forever.