Hi. Welcome to Wikipedia, and thanks for working to improve the site with your edit to List of Ultimate Spider-Man episodes, as we really appreciate your participation. However, the edit had to be reverted, because Wikipedia cannot accept unsourced material or original research. This includes material lacking cited sources, or obtained through personal knowledge or unpublished synthesis of previously published material. Wikipedia requires that the material in its articles be accompanied by reliable, verifiable (usually secondary) sources explicitly cited in the text in the form of an inline citation, which you can learn to make here.
In addition, Wikipedia is an encyclopedia, and its content needs to be written in a formal tone. Plot concepts or plot synopses should not include rhetorical questions, as these are not part of formal writing. Neither is using ampersands in normal text. (See WP:&.)
Also if you're going to contribute to an encyclopedia, then you should have a grasp of the basic fundamentals of writing. This means, among other things, that you should know how to capitalize proper nouns and form properly coherent sentences, which do not begin with conjunctions.
If you ever have any other questions about editing, or need help regarding the site's policies, just let me know by leaving a message for me in a new section at the bottom of my talk page. Thanks. :-) Nightscream (talk) 04:58, 31 January 2013 (UTC)