"Linkavitch Chomofsky"(portrayed by Brendan Fraser) is the name that Dave and Stoney, pick for the prehistoric cavemen they found preserved in an underground glacier. Dave calls him this because he thinks he is a "missing link." They pretend that he is a foreign exchange student from Estonia.
Link is very confused about how the world around him has changed and must adapt and learn teenage social customs at Dave and Stoney's high school. When he visits a museum on a school trip, he figures out what happened, but Dave and Stoney comfort him and tell him that they are his new family.
Link is a big hit in high school, and Dave comes to resent his popularity, but in the end Dave realizes that his friendship with Link is more important than popularity. Originally Dave just wanted to impress robin but in the end he comes to love link and gets robin anyways.