Write and expand articles related to CSI - there is always new information about the show to be added.
Organize and manage that content - a mass of information is of no use if it isn't properly organized. Also, make sure that any activity on any CSI article is being relayed back to the project. If there is a dispute on a single character's talk page, not everyone is going to see it. Recommend that the dispute be brought to the project, that way you can get the opinions of all the other participants.
Damage control - see something that needs to be done? Be bold! Edit articles, get involved in the discussions on the articles talk page, and feel free to tell us your thoughts and ideas on the WikiProject talk page!
Featured Articles & Good Articles - we have no featured content and only two Good Articles, let's try and make the three main articles featured content.
Create and expand episode articles for all the shows, giving full storylines, not teasers or summaries from DVD boxed sets or similar. There is a template in the Resources section for you to use.
Tag franchise-related articles
Add new information to episode lists as new episodes are aired
A Grizzly Murder - an admin has removed the CSD tag from this article, so it needs a complete rewrite following the episode template.
Greg Sanders- this article just needs some in-universe adjustments and grammar corrections and it will be all nice and clean. Possibly even GA worthy, though it would definitely take some work.
(the first 3 have very useful templates to speed things up; full credit to Emperor)
CSI at the International Movie Database, great for lists of writers, directors, special guests and other miscellania, but a bit light on plot depth. You could use the summaries in lists of episodes, however.
TV.com, a website with a broad range of information but little depth. It also has a modest photo gallery which you may find useful.
CSI Guide, contains in-depth plot information, but the grammar and syntax is a bit dodgy (for "a bit dodgy", read "incomprehensible")
CSI Files, well written plot synopses and my (Editus') first choice for plot summaries