PREVIEW: Cassie plots to rid Sami of her and Rexs lives forever! Shawn overhears the test results for the goop.SUMMARY:Anyone interested in writing a summary for this episode, please contribute your work using the contribute button ( + ) in the upper right hand corner. Please remember that the summary must be your creation and you will be given the credit. Any questions, please email the co-editor at email@example.com. Thanks to everyone!