It was bound to happen one day, a meeting of the Sanctuary, Warehouse 13 and Stargate teams. It started like any other day for all of the members. Some aliens escaped from Stargate Command into Colorado Springs and started causing trouble, with SG-1 naturally going after them. However, the weapons they used triggered the Warehouse alarms and so off Pete and Myka went to look for an unknown artifact. Strange creature sightings were reported, so Magnus and Will found a way to Colorado Springs.
From there, things got a little complicated. The three teams converged, causing chaos. In the process, both Warehouse 13 and the Stargate program were outted to the two other groups and the Sanctuary network became known to two of the government branches that it didn't previously know existed.
There's tension in the air, with talk of new personnel coming in to each group so as to allow the more experienced members to become liaisons, seeing as incidents could end up appearing on any group's radar and causing another unplanned incident. However, no moves have been made quite yet. Magnus is, naturally, annoyed that she had no idea about either agency, considering her contacts everywhere else and the Stargate program, operating primarily on other planets, is perhaps the least affected - though that's not to say they aren't intrigued. The Warehouse is caught in the middle, stuck between the reality of non-human lifeforms, both from Earth and elsewhere, being out there while still trying to get their own job done.
Will the chaos continue, or will the three teams find a way to move past this to protect Earth from threats on all sides?
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When Worlds Collide is a literate, intermediate crossover between Sanctuary, Warehouse 13 and Stargate. It is based just after the Sanctuary episode Awakening, the Warehouse 13 episode Queen for a Day, and the Stargate SG-1 episode Moebius II. Please visit for more information on canons - particularly how Sam and Helen manage to have the same face claim!