Sam Tyler meets Rose Tyler? The team has to work to catch Albert Stroller? The options are endless. You can crossover Life on Mars with texts which main cast members have been in (Sam Tyler meets James Mackintosh - OMG it's a kinder version of Gene), or crossover with something completely different (How would Chris handle a conversation with Forrest Gump?) You just need to have one major Life on Mars character in the story.
This is a two week challenge. Entries are due by Februrary 6.