What in the world?Libby Cope and Jacob Arnold bring their viral challenge to the Tam Fam: making butter while running through the streets of New York. Barbara Shemwell,the 78-year-old who jumped off a 500-foot cliff,taking on the longest rope swing in the United States. Cody Tarantino,the artist breaking the internet with his "infinite sketchbook," takes the Tam Fam inside his method; Kentee Pasek and her dog,Dexter, who went from survivor to celebrity for walking upright like a human,are here.