Small plane nearly crashes into traffic in Toronto Video

Now Playing: Small plane nearly crashes into traffic in Toronto

Now Playing: Runners race up steps of Eiffel Tower

Now Playing: Lightning illuminates night sky in Sydney

Now Playing: Enormous waves surge in Ireland

Now Playing: Dog rescued from mountain in Scotland

Now Playing: NASA astronauts head to International Space Station on Pi Day, taking off at 3:14 pm

Now Playing: Multiple South Korean musicians swept up in sex scandal

Now Playing: Boeing 737 Max 8 and 9 jets grounded

Now Playing: Ski-mountaineering race, flower-power, mourning victims: World in Photos

Now Playing: Brexit’s border battle

Now Playing: At least 8 killed, 37 rescued in Nigerian school building collapse

Now Playing: Special Olympics athlete Rainie Jade Thompson speaks live from Abu Dhabi

Now Playing: Across the Pond: Deadly school shooting in Brazil

Now Playing: Trump issues emergency order grounding all 737 Max 8, Max 9 planes

Now Playing: Final battle against ISIS

Now Playing: Ethiopian Airlines investigation

Now Playing: Boeing faces mounting pressure

Now Playing: Ethiopia Airlines crash investigation

Now Playing: Venezuela faces blackout, water crisis

Now Playing: Nigeria building collapse, NCAA basketball, super bloom