S4 · E2220 May 199245m7.5

A Leap for Lisa

Quantum Leap

Episode Summary

June 25, 1957: Sam leaps into Al Calavicci to prevent the death of his married lover. But when Sam accidentally alters history, and finds out too late about her untimely demise, it could mean the gas chamber for Al and disturbingly a whole new situation at Project Quantum Leap.