<Table> <Tr> <Td> ← Previous "The Fortress" </Td> <Td> Next → "Romeward Bound" </Td> </Tr> </Table> <Tr> <Td> ← Previous "The Fortress" </Td> <Td> Next → "Romeward Bound" </Td> </Tr> <P> "The Time Travelers" is the 20th episode of the eighth season of the CBS sitcom How I Met Your Mother, and the 180th episode overall . </P> <Table> <Tr> <Td> </Td> <Td> This article's plot summary may be too long or excessively detailed . Please help improve it by removing unnecessary details and making it more concise . (December 2015) (Learn how and when to remove this template message) </Td> </Tr> </Table>

How i met your mother the door episode