Goodnight Sweetheart
When Two Worlds Collide (5x3)
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Ron signs up with a dating agency. Yvonne makes a date with Gary, but when an unexploded bomb goes off in Ducketts Passage he has a problem. It is so serious that Ron misses his date to come to help. The two sides of Gary's life collide head on, and it appears that now others can travel between the 1940s and the 1990s.