Ironside waits to board a plane that will take him to Los Angeles and the National Police Officers Convention, a gathering he has not missed in over twenty years. Just before he boards, the plane explodes! Was someone after Ironside? Or another passenger? After eight grueling hours investigating this explosion, Ironside returns to his van and discovers an abandoned baby and a cryptic note, “Keep my baby until”... Investigating the plane's passengers, Ed Brown discovers an apartment provisioned for a baby, and a picture of the abandoned child. Could the two mysteries be one mystery?