My Three Sons (1960)

S3E23 Caged Fury

Robbie's wrestling teammates are in dire need of better grades to stay on the team, so they enlist Steve as their tutor. Just as they start their study sessions, the house is put under quarantine due to a diphtheria outbreak. Meanwhile, Bub is left frustrated when he misses his much-anticipated fishing trip with "Old Roy," the largest fish in the lake. The tension rises as he becomes increasingly agitated.