Hubie, who desperately wants to make the little league team in Spring, receives a new mitt from his mom and practices hard, but when he becomes sick, his big opportunity might escape him.

"While they are kayaking outside the San Francisco Giants' ballpark, Mike and Kate rescue an old ballplayer who has fallen overboard and discover his World Series ring is missing"--

During a visit to the Chicago Cubs' Wrigley field, cousins Mike and Kate investigate why someone has been tampering with the famous ivy vines growing on the outfield walls. Includes historical note.

Follows the experiences of benchwarmer Steve, who struggles to conquer his fear of getting hit with a baseball before his first year on the school team is ruined.

Sixth-grader Theo leaves everything behind to live with his Uncle Chester, a Vietnam War veteran and loner, in Destiny, Florida, but he is drawn to play the piano in Miss Sister's dance school and soon makes friends with the feisty Anabel, a baseball fanatic who invites Theo to help solve a mystery.

While visiting Houston, Texas, Mike and Kate tour the Johnson Space Center with an astronaut in the morning and at the Houston Astros' ball game that evening, the cousins search for the person who steals the astronaut's moonrock when he arrives at the stadium to sign autographs.

Cousins Kate and Mike visit Kate's father, a baseball scout for the Dodgers, in Los Angeles just as a series of suspicious events leads him to think that someone's trying to steal his scouting reports.