The Listowel Cyclones kept pace with London even strength but the Nationals had the edge on the power play.
3-2 was the final.
London opened the scoring in the second period when Christian Polillo tipped in a slap pass on a 5-on-3. Earlier, Listowel had a goal called back because of goalie interference.
Then London scored twice in a one minute burst late in the third.
The Cyclones had chances on the power play as well, including a 5-on-3, but were 1-for-6 on the night.
Trent Verbeek and Jonah White were the Cyclones' goal scorers.
London has a 2-0 series lead in the series with Game 3 in London on Sunday at 7PM.
You can ride the fan bus by contacting Listowel GM Wayne Long. His contact information is on the Cyclones website.