Supergirl
S01E18 Worlds Finest
Title: Worlds Finest Plot: Kara welcomes an unexpected ally to her side when The Flash, a super-speed hero from another universe, arrives to assist her. Together, they confront the formidable duo of Siobhan, known as Silver Banshee, and Livewire. In return for her support in defeating these villains, The Flash seeks Kara's aid in discovering a way back to his own world. Their partnership proves essential as they face off against powerful foes and navigate the challenges of interdimensional friendship.
Season 1 Episodes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pilot
Stronger Together
Fight or Flight
Livewire
How Does She Do It?
Red Faced
Human for a Day
Hostile Takeover
Blood Bonds
Childish Things
Strange Visitor from Another Planet
Bizarro
For The Girl Who Has Everything
Truth, Justice and the American Way
Solitude
Falling
Manhunter
Worlds Finest
Myriad
Better Angels