A documentary film about the highly successful Norwegian movie franchise «Olsenbanden», featuring old clips and interviews with the actors and director. Originally broadcast on TV 2 Norway in 1999.

In 50 years anniversary of the first film about The Olsen Gang appeared in Danish cinemas. The film series and its beloved characters are described in this documentary with selected film clips and through a mix of old archival footage and new interviews. The Olsen Gang forever! is an entertaining tribute series' cinematic universe, which has long since become Danish people's property and part of common cultural heritage.