Bank Robbers - S1.E21

Lily is leaving Limerick House to go to a high-flying, corporate job. Or so she says. What she really does is depart with the mirror, while Ned Kelly steals Constance's. Ned puts his mirror in a bank vault in the nineteenth century; Lily aligns hers in the twentieth... and then pops through to grab the loot. It's the perfect crime. Can the children foil the greedy duo?