<Table> <Tr> <Th_colspan="2"> "Invasion!" </Th> </Tr> <Tr> <Td_colspan="2"> Arrowverse crossover event </Td> </Tr> <Tr> <Td_colspan="2"> Home media cover </Td> </Tr> <Tr> <Th> Also known as </Th> <Td> <Ul> <Li> "Heroes v Aliens" </Li> <Li> "Heroes Unite" </Li> </Ul> </Td> </Tr> <Tr> <Th> Episode nos . </Th> <Td> <Ul> <Li> The Flash (part 1) </Li> <Li> Season 3, Episode 8 </Li> <Li> Arrow (part 2) </Li> <Li> Season 5, Episode 8 </Li> <Li> Legends of Tomorrow (part 3) </Li> <Li> Season 2, Episode 7 </Li> </Ul> </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> <Ul> <Li> Dermott Downs (Flash) </Li> <Li> James Bamford (Arrow) </Li> <Li> Gregory Smith (LoT) </Li> </Ul> </Td> </Tr> <Tr> <Th> Story by </Th> <Td> <Ul> <Li> Greg Berlanti </Li> <Li> Andrew Kreisberg (Flash) </Li> </Ul> </Td> </Tr> <Tr> <Th> Teleplay by </Th> <Td> <Ul> <Li> Aaron Helbing (Flash) </Li> <Li> Todd Helbing (Flash) </Li> <Li> Marc Guggenheim (Arrow & LoT) </Li> <Li> Wendy Mericle (Arrow) </Li> <Li> Phil Klemmer (LoT) </Li> </Ul> </Td> </Tr> <Tr> <Th> Production codes </Th> <Td> <Ul> <Li> T27. 13108 (Flash) </Li> <Li> T27. 13208 (Arrow) </Li> <Li> T13. 20007 (LoT) </Li> </Ul> </Td> </Tr> <Tr> <Th> Original air dates </Th> <Td> <Ul> <Li> November 29, 2016 (2016 - 11 - 29) (Flash) </Li> <Li> November 30, 2016 (2016 - 11 - 30) (Arrow) </Li> <Li> December 1, 2016 (2016 - 12 - 01) (LoT) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Episode chronology </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td_colspan="2"> The Flash </Td> </Tr> <Tr> <Td> ← Previous "Killer Frost" </Td> <Td> Next → "The Present" </Td> </Tr> <Tr> <Td_colspan="2"> List of The Flash episodes </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Arrow </Td> </Tr> <Tr> <Td> ← Previous "Vigilante" </Td> <Td> Next → "What We Leave Behind" </Td> </Tr> <Tr> <Td_colspan="2"> List of Arrow episodes </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Legends of Tomorrow </Td> </Tr> <Tr> <Td> ← Previous "Outlaw Country" </Td> <Td> Next → "The Chicago Way" </Td> </Tr> <Tr> <Td_colspan="2"> List of Legends of Tomorrow episodes </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Preceded by </Th> <Td> "Heroes Join Forces" </Td> </Tr> <Tr> <Th> Followed by </Th> <Td> "Crisis on Earth - X" </Td> </Tr> </Table> <Tr> <Th_colspan="2"> "Invasion!" </Th> </Tr>

What episode of dc legends of tomorrow is invasion