A man is injured when his chimney explodes. A brash young intern at Rampart thinks he knows more than the paramedics and makes a near-fatal diagnosis of a heart patient; Dr. Brackett send him on a ride-along with Squad 51. A girl gets her hand stuck in a mailbox. Johnny and Roy must rescue a heart attack victim trapped on an oil refinery tower — in the midst of an explosive structure fire.

John agrees that the losing baseball team at the fireman's picnic will pay for the picnic. Chet becomes Station 51's only hope when their pitcher breaks his arm. A drunk driver becomes violent after crashing his car; another man is trapped in a car with a tiger. A man with a back problem must be extricated from his water bed. A structure fire is complicated by moonshine.