Talented baseball pitcher Ginny Baker immediately rises to fame when she is called up by the San Diego Padres and becomes the first woman in Major League Baseball. She immediately sets in on the task of proving herself to her teammates, starting with team captain and catcher Mike Lawson. The two share an immediate chemistry, putting Mike in the middle of tensions between the beautiful new player and certain teammates who don't appreciate a woman out on the mound. Not all of her fellow Padres are so averse to change, with center fielder Blip Sanders providing support through her journey.
A young pitcher adjusts to life in the spotlight after making history as the first woman to play Major League Baseball.
Ginny tries to fit in with the team despite the resurfacing of a sexist comment made by Al. Meanwhile, Mike copes with the end of his marriage and mortality of his career; and Blip faces the fallout of Evelyn defending him to the media.
The Padres play against the Cardinals, whose pitcher broke Tommy's finger during a fight. Ginny realizes that her ex-boyfriend is on the opposing team. Al asks an old friend to help save his job.
Mike sustains an injury that threatens his spot in the MLB All-Star Game. Ginny attempts to balance her career and personal life. The Padres are blindsided when Oscar signs a star catcher from Cuba.
The Padres are on pins and needles as rumors swirl around the team potentially trading Blip. Meanwhile, Oscar tries to navigate working with Charlie Graham (Kevin Connolly), the interim Padres President of Operations and Mike tries to smooth things over with Amelia.
Upon signing a huge deal with Nike, Ginny feels an overwhelming sense of pressure, which leads to a night of rebellion and a mandatory session with a therapist (Rita Wilson)
Tensions rise when Livian Duarte is set to catch against San Francisco, moving Mike to first base. Elsewhere, Amelia and Oscar team up to combat the latest scandal involving Ginny.
A rain delay at Petco Park leads the team to hold kangaroo court in the clubhouse to pass the time. Meanwhile, Mike considers trading to a new team; and an unexpected visit from Ginny's brother causes friction with Amelia.
Mike becomes the biggest news story in the MLB when rumors start about him waiving his no-trade clause. Meanwhile, Evelyn and Will go in on a business venture together, but Amelia is concerned that it relies too heavily on Ginny's fame.
Ross warns the Padres that Ginny is dangerously close to her pitching limit, but management is reluctant to end her season. Meanwhile, Amelia confronts Will about money that has gone missing from the restaurant fund.