Cousins Mike and Kate investigate after someone threatens to tamper with the scoreboard right before the Colorado Rockies' season opener.

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

"While they are kayaking outside the San Francisco Giants' ballpark, Mike and Kate rescue an old ballplayer who has fallen overboard and discover

Cousins Mike and Kate are at Boston's Fenway Park when the Red Sox's star hitter discovers that his lucky baseball bat has been stolen.

When cousins Mike and Kate discover that the bat and ball that Hank Aaron used to hit his 715th home run have gone missing from the Atlanta Brave

"The president's brother is a catcher on the Nationals baseball team, and someone is stealing his equipment! Can Mike and Kate help the commander

In New York City for the annual series between rival teams, the Yankees and the Mets, Mike and Kate investigate a spate of pranks, thefts, and sa

"When Mike and Kate visit Detroit, someone is blackmailing the Tigers' famous slugger, Tony Maloney"--

Mike and Kate are volunteering in Cooperstown, helping wrap gifts for needy families, when a very valuable baseball card disappears, and they hav

Cousins Mike and Kate investigate when someone tries to stop the Cooperstown team from participating in the Little League World Series in William

Cousins Mike and Kate set out to catch the person who is selling counterfeit baseball shirts in the Texas Rangers' ballpark.

"Cousins Mike and Kate investigate after Marco and Pedro, the twin batters from the Minnesota Twins, are subjected to a water-balloon attack"--